When a girl did this stuff what does it mean?

i was looking down & doing my work & then when I looked up I saw the girl i liked looking at me & smiling then she looked down at my chest while still smiling then she looked up at my face while still smiling so I just looked away..then when I was talking to one of my friend I couldn't really hear him cause I had my headphones on & he said justin did you hear what I said & i said no. Then I heard her telling her friends that I crack her up and said that I was quiet but funny. Then later I heard her telling her other friends again that I'm quiet but funny. Then later i saw her looking at my direction

Means she likes you, and is into you. If you feel the same ask her out.