Crush on my personal trainer

Hey girlies. So I go to this gym and about a month ago I met one of the guys who work there. I’ve taken a few classes with him before so we kinda know of each other. Anyway, for the past month we have been having personal trainer gym sessions. But I kind of now have a massive crush on him ! Has anyone got any tips on how to get him to like him back ? We get on really well and always have a laugh.