If a girl looks at you then looks away quickly what does it mean?

She was embarrased to be caught staring

But, if a girl looks at you then looks away quickly, and then blushes (when your cheeks turn red) and lets out a little smile, she also might like you!

It mean she is attracted to you and likes you, so if she likes you she would like to look at you.

She either likes you or doesn't want to be caught starring at you, she could like you so don't deny it. she is probaly attracted to you, or somtimes she might look at you and then turn to a friend( they could be making fun of you)