Questions: Flirting

I know most guys like slim girls
and slims girls have thin thighs

I think I have thick thighs
Is it not attractive?
Do guys like thick thighs too?

This goes along with my other question about being able to tell if someone finds you attractive

Last night I went to a club with my friend and there were a bunch of guys who tried to dance with me (I only dance with girls) and they just didn't seem to get it, like all the other guys. I was polite to one who wanted to dance with my friend, but he kept talking and breathing in my face, but didn't get that I was gagging on his breath. When I intentionally ignored him to dance to a Panic At The Disco song, he kept trying to interrupt me, so I had to tell him off. I just wanted to go out dancing with my friend, not breath alcohol breath. Another guy kept trying to talk to me even though I turned my back on him (his friend kept invading my space and got kicked out). Every weekend there's at least one guy like that who just doesn't understand that ignoring them is the easiest way to say you're not interested

Can you tell if someone is intentionally ignoring you because they're not interested?