What does it mean when a guy smirks?

[Anonymous]

I was in a car with this guy, and I was applying lipgloss and looking in the mirror. When I looked at him , he was looking at my lips and smirking, what does it mean?

[Snedger____]

He's flirting. Either he likes you or he wants to fuck you

[Guy13]

Knows that you like him. Confident

[Asker]

Yeah he knows I like him, does he like me 2?😂

[Guy13]

He’s going to play you is my guess.