Does he like me?

So I'm just honestly downright confused. I'm young, but I identify as lesbian, because I thought I liked only girls, recently I began liking a boy but I like girls more ya know, I might be bi I Do anyways, this boy always talks to me in the hallways, finds little excuse to like out his hand on my back stuff like that and he's always trying to make me laugh and whenever we go to lunch he's always staring at me and waving, I think he likes me, but people who know him Better and like his exes keep telling me that he's shy and to Ask him out before be liars interest because he won't ask me out I'm going to do it Monday because I'm not shy but before I do does it sound like he likes me?