how to tell ..

so I have been messing around w this guy that is 3-4 years older than me and we hang out and we do things together but I'm not feelin that he's all that in to me . the first few times we hung out it was just layed back and we hung out and talked . he was super sweet when I first started talking to him . and now we hang out and we some times go places and he's had stayed w me at a friends house but I really can't tell if he's into me .