Stand up straight with a clear space in front of you.
Step your legs to be slightly wider than hip-width apart.
Drop down into a squat, then spring up and forward into the air.
Land on one leg.
Push through this leg to spring up and forward into the air.
Land on both legs again.
Repeat this movement, alternating landing on alternate single legs, and then both legs.
Ensure your knees do not drop inwards when you land.