So last week I was playing control in the crucible messing people up (No not really) and was lucky enough to get the pike in the beginning of the game. And so, I piloted that pike to the alpha point and went to dance. To my surprise, my guarding gestured. I didn't know this till than and showed all my friends. When riding a sparrow or pike you can point left, right, forward, and motion halt. Just thought i'd try to let everyone know in case you didn't know. Haven't seen anyone do this yet, it's pretty cool.