How: Get set-up standing by a wall or something that you can use for upper body support for balance. Get your feet shoulder width apart and only stand on one leg. After doming your foot, lift your heel off the ground as high as you can, hold for a moment and then slowly return to starting position
Feel: You should feel your foot and calf muscles working with this exercise. Your hip and thigh muscles will be helping as well.
Compensation: Do not let your knee bend, do not lose your balance, do not rely too much on your upper body if possible, do not lean forward/backward/side-to-side