You cannot.
By first GIVING the numbers!
All integers are rational numbers.
Find someone new to think about.
wait for an event put out by nintendo http://serebii.net/games/currentevents.shtml trade with a friend or find someone on youtube giving them away
you can find it by counting how many numbers they are in the equation
You don't.
dont make it to obvious, but show him you like him. Be nice to him, spen time with him. Or get someone, who's close to you and the boy, someone you can tust. Get them to say stuff like 'do you like..' or 'i think .. likes you'.
be yourself and you WILL find someone BETTER ;-}
By finding their common prime numbers.
Numbers on Contents
http://www.mortec.com/
You ask them or press random numbers