You most likely did a push-up at some stage in your life before beginning CrossFit, but you may not have done the full spectrum of motion pushups we use in CrossFit. Your arms should be absolutely straight at the top, and your chest should be in touch with the ground at the bottom.
AMRAP from 0:00-6:00: 3 Kettlebell High Swings (16/12 kg) (right) 3 Squat Frontal Raise (16/12 kg) 3 Kettlebell High Swings (16/12 kg) (left)
Then, AMRAP from 6:00-36:00: 1-2-3-4 reps of: Double Kettlebell Hang Cleans (2 x 16/12 kg) Front Squats Full Snatches (Broken set penalty: 10 Crush-Grip Push-Ups)