To join a Practice match, simply click on the word Join in any circle. You can choose to leave at any time.
You cannot join if the match is greyed out. This could be because it is a friends only match or you do not meet the level restrictions.
To join a Ranked match, click 'Quick Join' which will place you in an open spot. You cannot choose your opponents in Ranked Player vs Player but must rely on the computer to match you up.
The Ranked Player vs Player (PvP) matching system in Wizard101 is based on two very important factors: the Level of your Wizard character and the current PvP Rank of your Wizard character. The Level of your character is more important than the Rank, but your Rank is still a significant determining factor.
When you join a Ranked match, the system takes your information and tries to pair it up as closely as possible with other players who are currently waiting to compete. If no comparable players are waiting to compete, the system will widen the search. The longer you wait, the wider the search, and the bigger the difference between yourself and your opponent.
For matches of 2v2 or higher, the system will average out the determining factors for all the participants and attempt to match up players to the best teams and opponents that are available. The more players who are online and participating in the Player vs Player feature, the more closely the teams will be matched. When there are fewer players participating in the Player vs Player feature, the team members will be more varied and the differences between opponents will be larger.
That is the problem... I cannot lick Quickjoin it is all greyed out. I found out I can create a practice match, but I can't even join those of other people!