destiny's MMO aspect (beta)

The destiny beta ran pretty smoothly from my experience. I took mental note on the details of the mmo/shooter aspect and overall the game showed a decent balance. However i thought about the basics of player interaction and personal characters. For starters different character races and certain controls allowed players to greet, sit, point and dance with other players. But i thought as personal and diverse as players and characters are there should be more. For example, instead of just one kind of dance the game could incorporate a selection wheel that allows you to select between different dance animations. The same "selection" mechanic could also be used for greetings, directing, sitting or resting positions, or combat directions and hand signals. Another idea would be interaction between player characters, targeting a player and picking an action to perform with said players character, such as a fist bump, high five, hug, dance, and for gamer couples holding hands and such. The last system i would have incorporated would be a trade system for inventory, for example say a level 15 player found a level 9 weapon and they don't need it, the player finds a corresponding level 9 player and interacts with him to trade the weapon for glimmer, gear or for nothing. It would be a great tool and bring players together for better experiences. Thats all the personal feedback i would like to share for now i will try to post these topics once a week, please feel free to reply, comment and msg. Me on these ideas Thx for reading