Guys do you sometimes avoid girls you like?

[Víra]

The answer is yes and no.

Yes, he is aware that you're aware of his presence, so in a confined space he'll try not to be 'obvious'.

No, he only admires your beauty but has not interest in going out with you. He could also be just curious to know if you like him. He could also just be wondering if you're looking at him and you guys keep having eye contact.

The answer could really be both. But if he likes you, when you're in a group he'll talk to you and at least look at your face (but avoid eyes) Also if he doesn't like you: he might seem a bit uncomfortable and quiet.