Yeah
Yes it is okay. However, it is better for you to tell him yourself. If he rejects you, that means he's not the right person for you. If he does like you back then it was worth telling him yourself.
Text him and ask him what does he think about the kiss. Ask him if he likes you and if he wants to be with you.
text or flirt.
Tell Him you like him too.
you could type out 'i like you' then click send
If the guy is flirting with you through text, then he may like you.
tell him to deal with it :P
text him
never leave a note in there locker they think its cheesy you should just like tell your friend to tell him or text him
if you like him, but tell him to ask you out in person, and not to be such a sissy.
Text him. play the "question game" where you ask random questions and ask "who do you like?"
If they stop blogging on tumblr to answer your text...they like you.