ask other friends or just ask her.
get to know her more then ask her out
Start hanging out with her more.
No.
If she's going in for more ;)
ask her out.
that she wants to know you more or that she likes you
ask them to a movie get to know them more
If ur hampster starts eating more and gets fatter u will know
Most likely the boy just wants to know more information with the girl that he likes.
He spends less time with his girl and spends more time with you.
Usually if your goldfish is a boy it will chase the girl around..also it will be more narrow if you look at it from the top and the girl will be fatter (due to pregnancy). Another way to tell is the fin. If the fin is more of a wave it is a girl; if the fin is more of a spike then your fish is a boy. Hope this helps!
If he talk's to you more and is alway's around you then he like's you more