Depends on how well you know each other, but coffee doesn't necessarily mean he wants a relationship. If you've just met...it usually means he is interested in getting to know you - to see if you and he "click".
Good luck with him! Hope he's a sweetie.
Edit: Oh I just realized you might not be a she, and you're asking on behalf of someone else. Anyway, assuming this is not business related or him needing advice...guys don't just ask a girl out for coffee to be "friendly". It's because there is an attraction for something more...