The mischievous smile is the sarcastic and affected version of the common smile. Part friendly and part cocky, this shrewd feature of facial expressiveness can be used for mockery, flirting, irony, and more. Read Step 1 below to get into the art of the naughty smile - and remember to provide a mirror!
Steps
Method 1 of 2: To make the naughty smile

Step 1. Keep your lips closed
The mischievous smile, unlike the common one, does not use teeth. This is obvious: he must not express joy, but a certain degree of debauchery. Keep your lips together without twitching or hiding them; just make them normal, relaxed. One of the rules of a mischievous smile is that whoever does it must show no effort.
- a mischievous smile showing teeth may seem strange to others.. Some might even find an expression bizarre and frightening - like the one gangsters used in movies back in the day.

Step 2. Smile with half your mouth
Still keeping your lips together, lift one side of your mouth as if giving a "half-smile". However, don't try too hard - the mischievous smile works best when it's spontaneous and not faked.
Some people don't have perfectly symmetrical smiles, so find out which side of your mouth makes a more effective mischievous smile. Practice in front of the mirror to find out if it looks better when you lift left or right

Step 3. An alternative to "half-smile" is to lift just the ends of the lips, with subtlety
This second type of mischievous smile would be a more contained (and more "affected") version of the common smile, being much more complicated and that not everyone can do. Try slightly tilting the corner of your mouth up in a subtle expression of amusement. Don't smile too much though - there's a very fine line between a smirk at the ends of your lip and a scary smile.

Step 4. Maintain eye contact
Whichever version of the roguish smile you choose, the use of the gaze is always important. Ideally, your eyes reinforce the emotions you want to express through the mischievous smile. If you're blatantly flirting, show your confidence by directing a smoldering gaze directly at your "target." If, on the other hand, you want to demonstrate that you were slightly amused by something (a joke you heard, for example), cast a shrewd, shrewd look from the corner of your eye.
Use common sense. When smirking, don't look your partner in the eye any longer than usual in the context of the present situation - sly smiles can be frightening and creepy if you stare

Step 5. Don't arch your eyebrows or tilt your head
This is a very common mistake for those who practice the naughty smile. With rare exceptions, such actions convey a feeling that you are cheesy or faked. Generally, when a person does this, he ends up showing an emotion different from what he intended (confusion instead of fun, for example). Subtlety is an indispensable attribute of a mischievous smile, and it shouldn't be too "telegraphed" or corny, so avoid attention-grabbing behaviors.

Step 6. Don't show effort
No matter what you do, never look like you're trying to grin. In most cases, they come with a certain degree of arrogance and the feeling you want to convey - it's the natural way. If your expression looks artificial or forced, the result of your mischievous smile will be the opposite of the one intended.
Remember: be calm. The mischievous smile should convey tranquility and confidence, not desperation for attention. Don't smirk just so you'll be seen doing it, but rather as a natural reaction to what's happening around you
Method 2 of 2: Using the naughty smile

Step 1. Use the mischievous smile to show sarcasm
One of the most classic uses of the roguish smile is to demonstrate the irony of what you're saying. For example, throw a small derisive smile after enthusiastically praising someone, to imply that your words weren't 100% sincere.

Step 2. Use the mischievous smile to express your amusement
This type of smile can be a bit confusing because in addition to expressing sarcasm (as in the example above), it can convey the feeling (albeit subtle) that the person is entertained. A mischievous smile after hearing a good joke serves as a contained and silent way of expressing that it is funny. In the same way, in a debate, for example, the mischievous smile works as an implicit compliment to your interlocutor's argument, a simple way of showing that you agree with him.
Of course, even in situations like those described above, it is also possible to respond with sarcasm; therefore, it is important to be able to analyze the context of the situation

Step 3. Use the mischievous smile to flatter
Somewhere between sarcasm and fun is flattery - an arrogant way of showing that you've had fun with something. It's no surprise that the mischievous smile can also express this kind of feeling! Try throwing one when listing your own virtues or after making a sour remark about your partner (but all for the fun of it, obviously).

Step 4. Use the sly smile to flirt
He is a powerful weapon in the hands of attractive and confident people - both men and women. The mischievous smile demonstrates satisfaction in a shrewd, provocative, self-confident way; in short, it's irresistible when used well. Give that smile as you pass someone who caught your eye on the dance floor or that person across the bar counter you just offered a drink. A naughty smile is a way to make a great first impression and can open the door to a new love!