What do you do when a boy likes you, but you don't like him back?

You try sending him subtle hints like not flirting and suggesting group activites instead of one on one activities. If he persists or comes right out and says he likes you then just let him down gently. Say you want to be friends but you just don't see him like that. Let him down the way you would want to be let down. I hope that helps! Just message me if you need anything else I've done this before!

Don't flirt EVER. Since he's a good friend make sure you keep that in place. As a guy, I know that any flirty moves make one feel that you like them back. Maybe aquire a crush on someone else so that he knows you're not really interested in being more than friends. Some of my girl-friends call me "bro" and "dude" and it makes me feel like they're one of the guys which can also help. If you really wanna stay friends and wanna tell him in a subliminal way, say that you "love him like a brother."