What is the best training to improve upper body movement?
Looking back at the video I notice that my upper body is not moving at all. Just standing on the board. Anything else I miss? Bending form the hips? Any advise is welcome.

Trying to focus on breathing and coffee cup.
I know it’s flat surfing. Waves were knee to thigh high. Surfing on a DHD Phoenix 5’8” 31.5L
Any advice is welcome.

Got a GoPro to film myself and it was a shock. Thought I was better than this.
First issue I found, is too tense, not blowing out. Second back hand is not coming to the front.
Felt very good on the wave.
Any advice please.