How do you get someone to go out with you if you like them but they dont like you?

Make sure they 'truely' dont like you, by asking them directly their feelings toward you. Do not trust friends for this, as mistakes can happen. If his response is " I DO NOT LIKE YOU" then you can bet, he doesnt like you!! You cannot pressure or force a relationship to happen; however, you can ask what he doesnt like about you. It might be something as simple as ' I dont like your hair color'. Well, we know we can change that, but then the question arises, "Should I change for him to like me?" The answer for that is in your heart and yours alone. If you feel changing doesnt affect your self confidence, then do it. Also remember, if he doesnt like you (and you hear it from him) still be confident, and show gratitude toward him. Showing malace and anger will only drive him one step further away from ever appreciating you.