Why do guys in groups seem to stare at me or laugh at me in public?

I notice recently that in public, guys in a group of two or more tend to stare at me, maybe laugh or whisper to each other. There have been a few instances where after they laugh they try to talk to me or ask me out.

I’ve been told I’m pretty, but I feel ugly. Im 4’10, petite, and dress in usually a skirt, thigh highs, my doc martens, and a tank top or baggy sweater. I dress alternative, but not emo. I do wear eyeliner (+ other makeup and lashes), but it isn’t bad. Im not fat. And I’m not too hideous.

Are the guys laughing because they think I am ugly? Or…? And in the instances where they asked for my number, is it likely (if I had said yes) that they did this as a set up to reject me as a joke…?

I always worry guys are looking at me or laughing because I’m ugly :(. Why do guys look at me and sometimes laugh or whisper with each other…?
Why do guys in groups seem to stare at me or laugh at me in public?
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