1) Walk around naked, and when people ask why you're nude, tell them "it helps my glutes."

2) Do jumping jacks 18 inches away from guys bench pressing.

3) Place king size Kit Kats on every exercise machine.

4) Bring all of your laundry from home into the sauna so they can be "steam cleaned."

5) Walk past people using treadmills and play "duck, duck, goose."

6) (If you're a guy) Hide in the woman's locker and jump out while yelling "boo" every time a girl walks by.

7) Randomly go up to overweight people and offer them a banana because they "look like they should be eating healthier."