The following are cheating. Please don't do them:
1.) Weapon Toggling. Every time you switch weapons, you get an attack. You can exploit this to get lots more attacks than you should.
2.) Backpedaling. Continually walking backwards so as to be immune to attacks from the admittedly silly AI is -also- exploiting. Taking one or two steps to break combat is fine, however slowly backing away with something chasing you unable to attack is cheating.
3.) Regaining spells without resting. There are a few ways to do this. All are cheating.
As noted, please don't do any of them. Obviously, this is not a list of all things that are cheating. Just some, that are more commonly done than others.
4.) Transition abuse. Either luring monsters to a transition deliberately, in order to kill them in small groups, or, more seriously, double or triple clicking a transition to escape from someone or something that is pursuing you. For example, player A is chasing player B. Player B goes into a transition, and once they load the new area, they immediately click the same transition again so that Player A has no chance to see them.
5.) Logging out while in combat.
6.) Logging out while bleeding.
-Cross