What’s it mean when…

A guy purposefully refuses to look at you?

I was standing on the sidewalk with a group of friends and caught some guy staring at me. Then when I walked toward his direction, he turned almost all around to avoid looking at me. Meanwhile all his friends were normal chatting it up.

Had the same thing happen a couple other times like when I saw a guy while standing in line at a weed shop, and then after my purchase I saw him and his group of friends outside. Said dude instantly turned away when he saw me coming out of the shop.

Am I so unsightly, or are these dudes just weird/shy? Or immediately not interested as soon as I’m trying to catch some eye contact?

What’s it mean when…