Just played a little bit on someone else's account. You walk around looking at a map on your phone (very little detail on the map, it's just a 3d street map) and sometimes you see a pokemon running around on your block. You tap on the pokemon and a screen opens up where you have to throw a ball at it. When you hit it, you capture it. There are also these floating disks with images of local landmarks, and when you swipe on them, you get more balls or other prizes. That's about it.