It's never easy to find out if the person you care about reciprocates the feeling or likes someone else. Still, if you suspect she's into someone else, it's better to find out as soon as possible and not prolong the pain, right? If you want to know the reality, just observe your behavior and conversations. Come on?
Steps
Method 1 of 4: Observing General Behavior

Step 1. See who your crush follows with your eyes
One of the keys to knowing who a person likes is to see who they pay attention to. If they're at school, at an event, or hanging out with friends, watch who the guy looks at. If he keeps drying someone specific, that could be a sign.
Warning:
be careful not to get caught staring at your crush, as this can cause some discomfort between you.

Step 2. See who he is sitting or talking to
When we are in love with someone, we are attracted to the person and end up staying in the same space as him. Watch your crush: does he usually sit close to a specific person during classes? Does he change tables just to be close to someone? These are some signs that there is something more there.
Obviously, the other person can just be a friend. To learn more, you will need more evidence

Step 3. Watch if your crush gets nervous or excited in the presence of someone else
If he always interacts with a specific person, see what those interactions are like: do they get nervous, a little anxious, or blushing? These are some signs of romantic feelings and deserve your attention.
Think about how you know when someone likes you or how you act in the presence of your crush. Are they behaving that way? Usually, you can apply the same principles in the situation to assess how well the two fit together

Step 4. Watch how much they stay on the phone
There are many reasons for a person not to leave their cell phone nowadays, but if your crush is sending messages and checking notifications all the time, a sign that you are distracted by something or someone.
Also on this subject, see how the guy reacts when his friends ask what he's doing or who he's talking to. If he gets defensive or uncomfortable, he was probably talking to someone important

Step 5. Notice changes in style
When we like someone, it is normal to change our clothes and actions a little to please the other. For example, if you notice that your crush has started wearing band shirts or bleaching your hair at the same time that it has started hanging out with a more rock person, maybe he's interested in her.
Also remember that people love to change their look, and that's not a sign that they're interested in someone else. All clues must be analyzed together, always
Method 2 of 4: Observing Changes in Your Interactions

Step 1. Keep an eye out for changes in your crush's mood when you spend time together
If you talk a lot outside of class, try to identify changes in his attitude. If he was really friendly and nice, but he's started to drift away and sulk, it's possible he's got mixed feelings.
Be careful not to "stick" to the guy, if that's the case. Give him a little space to understand what he's feeling and take the time to reassess his feelings as well

Step 2. Observe how he acts personally
Look for signs like him stopping greeting you in the hallways at school or stopping coming to your classroom during breaks. If they interacted every day normally and it started to diminish, maybe his feelings have changed.
Being ignored like that is a clear sign that the guy doesn't feel the same way he did before, especially if this change comes with a new friendship

Step 3. See if he cancels the plans with you
If you're friends and see each other often, watch out if the guy starts to change plans or cancel your hangouts, as this is a sign that he's probably spending more time with someone else.
If you can't schedule anything with him anymore, chances are the guy is too busy with someone

Step 4. Analyze the speed with which it responds to your messages
Were you used to quick and frequent responses? If the guy takes too long to respond or drops off in the middle, there must be a reason. It's normal for this to happen from time to time, but if his behavior has gradually and consistently changed, he may be too busy talking to someone else.
Ask if everything is ok. Maybe the guy is simply overwhelmed with studies or work. If you guys are close, there's nothing wrong with asking

Step 5. See how often he quotes other people
If your crush is all the time talking about a specific person, it is likely that he has some interest in that person. If someone's name gets repeated a lot, stay tuned and find out who they are.
It's possible the guy doesn't even realize he's doing this. How many times have you mentioned him when talking to your friends, without realizing that you kept talking about him?
Method 3 of 4: Investigating and Asking Questions

Step 1. Check out the guy's social media
Don't get too obsessed, but take a look at what he's doing. Web profiles can tell you a lot about who we're interacting with and where we're going. You might be able to see who he recently added or which posts he's been enjoying the most.
To avoid torturing yourself, set a limit on how often you'll see his social media, such as once a day instead of once an hour

Step 2. Listen to rumors in the hallways
While gossip is usually not a good source of information, the things that are said in the hallways at school are often true. Hear everything with a backwards foot, but if the source is reliable, pay attention.
For example, if you hear three people saying that their crush was at the movies with another girl, that's a sure sign that it really happened

Step 3. Talk to your friends as they may see the situation more clearly
Ask their opinion and ask them to keep their eyes open in the presence of your crush to see what's going on.
Get ready to hear what you don't like. If that happens, don't be mad at your friend. It's okay to be angry about the situation, but remember that your friend was just doing what you asked

Step 4. Talk to a friend of your crush to see if he has any information
This will work best if you are friends and can talk without it seeming awkward. Obviously, the guy is likely to know that you asked him, so be prepared for the consequences.
For example, try saying something like: "Hi Luan, I noticed that Olivia and Carlos are spending more and more time together. Do you know if something's going on?"

Step 5. Ask him directly.
This step is a little risky, but if you believe your crush likes someone, it's best to ask so you can move on with your life. Question him in a non-inquisitive way, just showing curiosity.
For example, you could say something like "Hi Paulo, I was wondering if you like Luiza. I've noticed that you've been spending more and more time together." If he wants to know the reason for your interest, answer "Oh, nothing, just curiosity"
Warning:
if you don't know your crush that well, it's better not to ask a question like that. Getting involved in the personal life of someone who is not your friend can cause discomfort.
Method 4 of 4: Moving Forward

Step 1. Don't blame yourself or think you're not good enough
If you found out that your crush likes someone else, don't let it shake you! No putting yourself down! Focus on the good things you love about yourself! The fact that this person doesn't like you doesn't mean that no one will, it's just that things didn't work out.
Try this:
if you can't stop criticizing yourself, make a list of five things you like about yourself. From a sense of humor to clothing style, there are plenty of things to like!

Step 2. Remember that your crush can like whoever it wants
If you need a little help to control the bitterness, be careful not to vilify the person your crush has chosen. Accept that he is an individual who can choose who to be with. Even if you're hurting right now, know that everything will be fine.
Remember you don't want to be with someone who doesn't want to be with you

Step 3. Allow time and space to overcome your passion
Obviously, your feelings aren't going to disappear overnight. Even if you were friends with the guy before the whole thing, it's best to distance yourself from him a little, as constant contact isn't going to help you get over the crush and get on with your life.
Take time to adapt your expectations. If you were friends before, reassess whether you want to keep the friendship or not. If you choose to stay in touch with the guy, it might be a good idea not to get too close to him

Step 4. Focus on yourself, your friends and the things you love to do
Do your best to clear your head and live your life without thinking about your crush. It's tough, and you'll probably feel like sitting on the couch eating ice cream straight from the jar, but don't fall for it. Take this time to focus on friendships, practice self-care and maintain your hobbies.
It's okay to be sad! Just don't let yourself take too long on it

Step 5. Open up with a friend to talk about what you are feeling
Sometimes the simple act of putting your feelings into words can help you tone them down. Talk to your best friend and let it go. Even if she already knows all about this story, it will be good to talk about what's going on.
Avoid complaining about it for a long time, or your friend may get tired. Be careful not to stray from others because of your problems

Step 6. Allow yourself to like someone else (or not to like anyone)
Instead of obsessing over the crush for months, allow yourself to meet new people and like them. Or, if you prefer to take a break from romance in general, learn to be comfortable on your own!