Some tipps that you can use ^^

afk: Toggles your afk status on/off
report <abusive player name>: Brings up the report menu
join <location name>: Takes you to the desired location
join <location name>-<room number>: You can join custom rooms over 1000 and under 100000, as long as they are not full
goto <character name>: Go directly to a specific player (presuming the destination room is not full)
w <player's name>: Whisper someone privately
tell <player's name>: Whisper someone privately
<player's name> > : Whisper someone privately
[shift]+click a name in the chat window: Quickly lets you whisper that player
who: View users in the area
who <player's name>: Tells you if that person is logged on to the same server as you. (Note: Glitches and does not work if the player's name consists of three or more parts.)
s: Speak in normal chat
1: Speak in normal chat
p: Speak in party chat
ignore <player name>: Ignores a player
unignore <player name>: Unignores a player
c: Speak in private chat (after someone pm's you)
r: Reply to the last person that whispered you in private chat
> (space): Reply to the last person that whispered to you in private chat
partyon: Toggles party invites on
partyoff: Toggles party invites off
friendon: Toggles friend invites on
friendoff: Toggles friend invites off
pmon: Toggles whispers on
pmoff: Toggles whispers off
friend <player's name>: Invites player to join your friends list
invite <player's name>: Invites player to join your party
house <player's name>: Go to someone's house (if they have one)
repairavatars: Repairs/refreshes incomplete Avatars.
rest: You kneel and rest (recovers hp/mp)
roll: Randomly rolls a number between 1 and 100
reload: Reloaded your character in the map
ps <player's name>: Summons a player. (must be in your party.)
pi <player's name>: Invites a player to your party
duel <player's name> Invites that person to PvP (Doomwood Arena only)