HOW: Place a resistance band around your ankle. Shift your weight onto one leg and balance on just that leg. While maintaining your balance, slowly kick out with your other leg.
FEEL: On your balancing leg, you should really squeeze and feel your glutes to stabilize yourself and prevent you from falling. With your kicking leg, squeeze your thigh to straighten your knee first before kicking out against the band.
COMPENSATION: Make sure you squeeze your thigh/knee first before kicking out.