Working out with people

I went to the local park and bumped into a few of my church friends who were about to exercise, we ended up running together and i ended up trying to push their limits, i also ended up pushing my limits as well, we ended up doing abit under 10 laps of a large soccer field so yeah, didn't know i could of ran that much :o but yeah, working out with people motivates you to push your limits they can be beside you and you both attempt to exceed your limits :)