Originally Posted by
bbbean
Pedal in circles. Use the same motion you'd use to wipe mud off your feet. Focus on pushing your foot forward and back.
^^this.
It takes some practice, concentration and attention to detail. Start by concentrating on this whenever you are climbing, even small grades. You can easily get 30% more power out of something like this. Makes a huge difference.
Lots of videos on youtube that illustrate the technique.
J.