What does it mean when a guy purses his lips while looking/talking to you?

[TsundereMatrix]

The guy I like does it a lot. Could it mean he's frustrated with me?

[kenworth]

it could mean anything from nothing. to. he's a drug addict who's needing a fix. really there a no way of knowing without talking with the person about it. ask him. would be my best advise

[kenworth]

I thank you for the mho

[KingOfGaG]

the same thing happens when you hold back a smile - try it

[Anonymous]

It really doesn't mean much

[Nahid1234]

No ☺️💕