You might want a chair, wall or similar for this movement
Step 1
Hold onto your chair, wall or similar at your side and keep your feet just wider than hip width apart (or a comfortable distance for you)
Step 2
Brace your tummy like someone is going to poke your stomach and keep your shoulders back with your chest up
Step 3
With your weight in your heels, squeeze your glutes (your bum) and lift one leg up in front of you with your knee bent (only as high as is comfortable)
Step 4
Move this knee out to your side as wide as is comfortable and then return in to your starting position. You’ve now created a ‘rotating’ movement
Step 5
Repeat this movement, making sure to squeeze your glutes
Step 6
Repeat on your other leg