Yes certainly. Through body language for one.
Check out this blog post, it has all you need - http://georgeulysses.com/2009/09/28/20-ways-to-tell-if-a-girl-is-interested/
it means a the girl thinks you like her and might be interested in you
In 'girl talk' she thinks you are attractive and a high possibility of dating so ask her out!
No. Of course not. Not even.
Nervous Or Afraid Of What The Girl Thinks
It means she isn't interested in you. Or she is embraced to say yes and thinks she will get teased
When a guy is interested in you he flirts alot emails you alot and mabey wants to talk to you alot more than usual...and if he asks who you are interested in he's wanting to know if you are interested in him also he smiles at you in a different way than usual or he is a show-off in front of you those are the most obvious signs that I know of.
When she thinks about him a lot, maybe even has a crush on him
hmm. i guess it would mean he is interested in this girl. deep thought
If a girl thinks she is pregnant that doesn't mean that she is pregnant. A woman cannot menstruate while she is pregnant, thus if she menstruates she obviously isn't pregnant even if she thinks otherwise - although women can bleed during pregnancy this is uncommon, and not menstruation.
Tell her politely that you are interested in someone else (even if you aren't).
It is obvious he is not interested in you and very obvious he is interest in someone else - its best to just let things be - let him be, let go and move on.
hE thinks he should like her and get becky from her