Soda Pop Test
Stopwatch, cans (filled), cardboard (with six circles drawn)
2x: subject must flip the cans upside down to each corresponding adjacent circles on the cardboard
2. Alternate Hand Wall Toss Test
Tennis Ball
Throw a tennis ball against a wall and succeed in catching it each time.
Stand three feet away from a smooth and solid wall.
Throw the ball with one arm, in an underarm action at the wall.
Catch it with the opposite hand as it bounces back at you.
Throw it back at the wall with that hand and catch with the opposite. Repeat. Time how many successful catches you achieve in 30 seconds.
3. Alternating Juggling Test
Tennis balls
Assume the position to juggle: stand with your shoulders in line with your feet and your elbows bent at 90 degrees. Not too bent, though, or it will become uncomfortable
Start with one ball. Throwing it back and forth between each hand, make dominant hand and one in the other hand. Throw the juggling balls just as before, but add a third throw right before the second juggling ball comes down.
Practice, practice, practice. Even the very best jugglers in the world started in this way. They didn’t just become amazing jugglers. They spend hours every single day practicing their trade.