Well that's simply because when you call him then you initiated contact first and so it makes it easier for him to aproach you. He's just waiting for you to be the first one to talk to him, maybe 'cause he's shy.
He only wants your looks!
if he only calls you when he wants something if he only wants to talk about sex and when your going to have sex if he never asks anything about you if he only talks about what he wants if he comes around when he wants something
If a boy teases you, not like bullying, it means that he wants to hear you voice/wants to talk to you.
He might be shy, or not like you anymore.
it usually means that he is shy and wants to talk to you
That means he likes you, but is embarrased to talk to you.
You can't make a boy commit to a relationship. Forcing a boy to commit, will only push him away more. The best thing to do is talk about the future with him, if he wants to talk about it, he normally wants to commit, if not, don't get your hopes to high. You shouldn't force commitment in a boy, because if he really loves you he will be there to stay.
Because he only wants you to know what he is saying
It depends on what he wants to do on the walk and what he wants to talk about.
A tomboy !
Well it sounds like that he want you to call him, to talk in private to you.Though usually guys/boys will ask for your number and permission to call you sometime.
When he flirts with you, and walks by you.