Ideas:
Yoga
Ride a bike
Go on a jog around your neighborhood
Sign up for a new sport
Teach a sibling a new sport
Do jump rope tricks (http://www.livestrong.com/article/144274-easy-jump-rope-tricks/?scrlybrkr)
Play a sport
Play ultimate frisbee (http://www.whatisultimate.com/what-is-ultimate/the-rules/)
Go to the gym
Go to a gymnastics gym
Practice holding a handstand (If you can't do it by yourself, do it against the wall)
Zumba (https://www.zumba.com/en-US)
Watch a fitness video to workout a specific part of your body
Ride a bike
Go on a jog around your neighborhood
Sign up for a new sport
Teach a sibling a new sport
Do jump rope tricks (http://www.livestrong.com/article/144274-easy-jump-rope-tricks/?scrlybrkr)
Play a sport
Play ultimate frisbee (http://www.whatisultimate.com/what-is-ultimate/the-rules/)
Go to the gym
Go to a gymnastics gym
Practice holding a handstand (If you can't do it by yourself, do it against the wall)
Zumba (https://www.zumba.com/en-US)
Watch a fitness video to workout a specific part of your body