Beginner riding tips: Cantering edition

After a long period of off-and-on riding, I have recently started doing cantering work. Somehow, when you're moving at a different gait at a slightly faster speed, all that you have learned in the trot goes out the window, at least for me.

This post is mostly a collection of tips (and admonishments) for myself to read over, so that I hopefully remember them when moving fast.

1. Keep your leg long. The joints in your legs act as shock-absorbers and sitting the canter is way harder when these joints are locked tight! Plus, you keep losing your stirrup that way. 
2. Outside cue is not just the leg, but the seat and body. The leg moving back should come from naturally from the change in your seat. Your torso should reflect this change by the outside shoulder moving back.
3. Sit tall and keep the core engaged. You tend to hunch over when things don't go your way and you get nervous. This only makes things worse by negatively affecting your balance! Sit tall by keeping the core engaged.
4. Remember, nothing good happens unless your horse is thinking forward.