Honey, that may take forever. I knew that my current boyfriend liked me for a couple months, but it took him like 5 months to tell me he liked me bc he didnt know i liked him back. Take the reins girly and if you like him, either make little hints every so often OR do what i do and dont be subtle and just tell him, Hey, just so you know, i like you... and walk away. :)
Guys are very shy when it comes to relationships, it may not seem like it but they are. Try telling him you like him and maybe after a while he might say it. Don't be blunt about it, if you do he will never admit it. OR if you don't like him you could just tie him up and torture the truth out of him >:D jk.