At my job at Intel I regularly left to get coffee, then took 30 minute walks around campus.
I'd say the last 5 months I spent 4/5 of my time walking around.
We also had a game room with ping pong, a giant tv, and foosball. I spent a lot of time there.
EDIT: We also had beer scrums on thursdays. (meetings at a restaurant and we all drank beer except me cuz I wasn't 21 at the time rip my lyf)