socials,poses,emotes
There are 'social commands' (abbreviated 'socials') which are for insignificant character actions which do not affect the game world at all. Example:
  > smile
  You smile.

You can also specify adverbs:
  > smile widely
  You smile widely.
  
Some actions may be directed at other objects:
  > nod at marn
  You nod to Marn.
  
Adverbs and targets may be used together, and the adverb can be abbreviated:
  > gl ang marn
  You glare angrily at Marn.
  
To get a list of all socials, type 'socials'. For information on what message a social produces, and what adverbs you can use with it, type 'help social:<name of the social>'.