Bungie has shared with us that you can use the d-pad in Destiny to perform certain gestures. For example:
Up=wave
Right=point
Down=dance
Left=salute
What if we were able to choose our own gestures? What do you, the fellow guardians of the last city, think would be an awesome gesture for your guardian?
These are my suggestions for inspiration:
The John Cena gesture:
http://www.whutupdoe.com/wp-content/uploads/2010/06/Jon-Cena.jpg
And the Vector Dance gesture:
http://www.youtube.com/watch?v=DTCmszmHj_Q
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In all honesty being a bungie game I would enjoy (not so much a gesture) but like in army of two, you could slap or punch your buddy if he screwed up. I enjoyed that alot :)