What to do

So I’ve really liked this guy for a while and I’d like to just be forward with pursuing him and ask him out but he’s quite a bit older than me (in his 30s and im just in college) and he lives nearby, so if things went wrong it could really be awkward... I really feel different about him than anyone I’ve ever liked before. how do I figure out if he’s seeing anyone (i know he’s unmarried but i dont know if he’s dating anyone) and how do i keep in touch? Is it appropriate to tell him im interested in him? We arent very social with our neighbors, we get along well and talk if we run into them but not well enough to have them over or just stop by and talk anytime. Any advice would be great