I asked a girl out but I'm not sure what he answer is.
Have you ever thought that she might like you too?
I know I'm a really hot guy. I can tell that she likes me too sometimes.
Even if the answer is not very clear, you need to respect it and not keep asking. Otherwise they might give in because of pressure.
I bet she just wants to get close to me.
You shouldn't assume things about people in that way. If she's into you, she'll let you know clearly and on her own.