You're asking about the
smirking face emoji (

).
The smirking face emoji typically means a variety of things, often with a hint of something unsaid or sly. It generally conveys:
1.
Smugness / Self-satisfaction: "I know something you don't know," or "I told you so." A feeling of being superior or having achieved something clever.
- Example: "I aced that test
"
2.
Sarcasm / Irony: Used to subtly hint that a statement should not be taken at face value.
- Example: "Oh, you're *so helpful
"*
3.
Flirtation / Suggestiveness: Often used in a teasing or slightly suggestive way, implying a hidden meaning, or making a playful advance. It can be seen as "perverted smile" or "bedroom eyes."
- Example: "Saw your post
looking good!"
4.
Mischief / Cunning: Implies a sly plan, a trick, or having gotten away with something naughty.
- Example: "Just ate the last cookie before mom got home
"
5.
Confidence / Cheekiness: A playful confidence or a hint of defiance.
- Example: "Try to stop me
"
Context is really key with this emoji, as it's one of the most versatile and often ambiguously used. Pay attention to the surrounding text and the relationship you have with the person sending it.