I've been friends with this guy since high school, then we both went to university and didn't see each other for a year. Since high school, I've changed my fashion style from sporty to feminine and started playing with makeup. Recently, we met up, and I've noticed him looking at me differently and blushing. I like and respect this guy, and I think he'd like to ask me out, but it's awkward because we've been friends for so long. How can I suggest the possibility of a relationship?