How do you like to show motion? Knowing the best shutter speed is important. Remember that slow shutter speeds cause blur and fast shutter speeds stop the motion. 

I tend to go for a fast shutter speed, and to stop the motion.

Standing underneath my brother in law as he takes a swing on the rope that we found on our walk, I managed to get a great angle to show his enjoyment.

What will you find to photograph from underneath?