Please help asap!! i am not sure what the next move is?

I went swimming with my best guy friend who i like. he likes me and we talk a lot i am not sure what the next move i should do. (i have to be careful of what the next move is because he has autism and isnt very touchy so a kiss might be a bit much and his family could be around) please help i am not sure what to do. (i am 17)