Hops:small hops in place, knees bent feet just breaking contact with the ground. Focus on the feeling of a VERY relaxed jump using muscle elasticity.

Hopping with fall: start with a hop  fall just enough to start moving forward. Make sure you are not using your calves to jump. Very slight move forward, happening from the fall.

Repeat this drill until you make sure every single repetition is the same, do not rush