<human>: Four months ago I ended a 2.5 year long (my first) relationship, so I'm not very experienced when it comes to dating. I'm moving from this town in a couple of months, so I'm not looking for another long-term or serious relationship. 

I volunteer at this organization once a week, and I've made friends with another volunteer that started about a month ago. He's not scheduled to come around on the day I work, but he usually comes around so it's hard to estimate how long we've known each other.

What would be the best way to approach him and see if he's at all interested? I don't want to do it too bluntly, because if he's not interested I'm afraid that it would make it awkward between us whenever we work.

We usually wind up sitting around and talking, because we finish early (the place has to stay open till a certain time). I tell him every time he's free to leave, but he always winds up staying. Could be reading too much into that though.

Can you summarize the given text in a few sentences?
<bot>: Co-volunteer and I have a lot in common. I want to get to know him better by going on a date, but I don't know how to do so without potentially ruining the work environment.