Still playing catchup from this weekend, so consider this Part II.
As I mentioned before, Tab invited me to do a "meetup" with her. MeetUp is a website that basically facilitates group activities and adventures. You want to go hiking but don't know where to go or how to get there? There is probably a meetup. I think they have them in other locations, but I am registered in Seoul, and I belong to a few different groups. I hadn't done a meetup before, but when Tab invited me I agreed.