What would u do?

i like this guy and idk if he likes me or not his sister says he does and he wants to ask me out but idk my friend tiffani likes him 2 and she told me that he wanted to go out with her but he didnt want to hurt my feelings. well he is really shy around me and i dont think i have ever said anything to him except hi and a couple other things. well today he came up to me and just stood there and then a lil while later hes like this is akward never mind! what do you think he was going to say? well idk but its really hard for me to talk to him and for him to talk to me. my other friend taylor said he told her that he wanted to talk to me but was to afraid. and when im near him while hes with his friends i know hes talkin bout me cuz he always looks back at me and his friends just stare at me. he was sittin at the table across from me and his sister said all loud michael changed his mind bout jessica he wants to go out with you and then he doesnt say anything like no i dont. what should i d