World of Warcraft (commonly known as WoW) is a massively multiplayer online role-playing game (MMORPG). It is Blizzard Entertainment's fourth game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994. World of Warcraft takes place within the world of Azeroth, four years after the events at the conclusion of Blizzard's previous release, Warcraft III: The Frozen Throne. Blizzard Entertainment announced World of Warcraft on September 2, 2001.

The game was released on November 23, 2004, celebrating the 10th anniversary of the Warcraft franchise. It is currently the world's largest MMORPG in terms of monthly subscribers. The first official expansion pack of the game, The Burning Crusade, was released on January 16, 2007. During the 2007 BlizzCon event, Blizzard announced a second expansion pack called Wrath of the Lich King on August 3, 2007. The release date of Wrath of the Lich King has not been announced.
(Wikipedia)

COMMANDS

Emotes and commands
Enter one of the following command in the chat window to activate the corresponding effect.

Dance - /dance

Sleep - /sleep

Fart - /fart

Joke - /silly

Click on other player to spit on them - /spit

Click on other player to cry on their shoulder - /cry

Click on other player to wave at them - /wave

Click on other player to blow a kiss - /kiss

Click on other player to flirt with them - /flirt

Clock on other player to mourn them - /mourn

Gives current bind location - /bind

Cast spells by name - /cast

List chat commands - /chat or /chathelp

Your character follows selected player - /follow or /f

Raise your arms and flex - /flex

List guild commands - /ghelp

Send message to party chat - /party or /p

Send reply to the last person who sent you a tell - /r

Send message to people near you - /say or /s

List players online - /who

Yell message to the area around you - /yell or /y

Create an emote - /em

Display amount of time game played with current character - /played

Send text to channel number - /, /c, or /csay

Toggle join and leave announcements on channel - /announcements or /ann

Set your Away From Keyboard flag - /afk

Set Do Not Disturb flag - /dnd

Ban or unban player from channel - /ban

Unban player from channel - /unban

List channels - /chatlist

List channel members - /chatwho or /chatinfo

Invite player to channel - /cinvite or /chatinvite

Join channel - /join, /channel, or /chan

Kick player from channel - /kick

Leave a channel (or all channels) - /leave, /chatleave, or /chatexit

Set player's moderator status - /mod or /moderator

Remove player's moderator status - /unmod or /unmoderator

Toggle moderation on channel - /moderate

Change player's mute permission - /mute or /unmute

Change player's squelch permission - /squelch or /unsquelch

Change player's voice permission - /voice or /unvoice

Change password - /password or /pass

Guild commands
Enter one of the following codes at the chat window to activate the corresponding effect.

Codes

Basic information about guild - /ginfo

Send chat message to all guild members - /g

Send chat message to all guild officers - /o

Invites player to join guild - /ginvite

Remove player from guild - /gremove

Promote player one rank within guild - /gpromote

Demote player one rank within guild - /gdemote

Set guild's message of the day - /gmotd

Remove self from guild - /gquit

Give entire guild roster - /groster

Set another player as the guild master (guild master only) - /gleade

Disband guild (guild leader only) - /gdisband


Here is a WoW video: