Stand up straight and step one leg forward slightly further than a normal strides length.
Keep your body up nice and tall and your gaze ahead.
Begin shifting your weight forwards and backwards, allowing your front leg to bend a little as you move the weight onto it.
Add in the arms.
As you move your weight forwards onto your front leg, raise your opposite arm up into the air.
Move your other arm back as much as possible, leading with your palm.
You may find yourself rotating towards your front leg.
Return your weight to your back leg, lowering you arms, then repeat.