From YPPedia

Chat commands

/clear

/crew

/emote (/me)

/fbroadcast

/fofficer

/game

/house

/jcrew

/officer

/royalty

/shout

/speak (/say)

/tell (/msg)

/think (/ponder)

/vessel

The /emote command places your name in front of the text. Emotes are useful for general expressions, for example 'Callistan has another drink.' This command can be used in conjunction with /crew, /jcrew, /vessel, /house, /game, and /speak chat channels.

Usage
/emote <message> (/e, /em or /me)

Emoticons

Some emoticons work as shorthand for equivalent /emote statements:

Emoticon	/emote Equivalent
:-)	/emote smiles
:-D	/emote grins
:-(	/emote frowns
;-) or ;-D	/emote winks
:-P	/emote sticks out a tongue

The dash for the nose is optional, the colon can be substituted for an equals symbol, and any shape of bracket (parenthesis, square, curly) can be used for the mouth. The emoticon must be the first character in a line, and any following text will be included in the emote equivalent, ie. ":-) too funny" would translate to "/emote smiles too funny". This works in all chat channels /emote is supported in.

Historical Notes

Between release 2005-06-29 and release 2005-07-08, the command for remove players from buildings was /eject. This conflicted with /e, a shortcut for /emote. The command to remove players from buildings was therefore changed to /plank.