First Tab: Players

Click on the Players tab, and you'll see a list of parties looking for players. Each entry includes the following information:
All searching parties in all districts for your current town or outpost
The district location of each party
The size of each party
Short descriptions written by players for their parties

The three icons shown below are used throughout this list. Each party leader who has specifically invited you to join a party has an "invitation icon" next to the party leader's name.
After you send an invitation to a party, that party has a question mark next to the party leader's name.
After two parties have agreed to join, this icon shows that they're merging.


You'll also see information for your own party on the list, but the information will be grayed out.

Selecting an entry on the list provides the following options:
Whisper: Select this option to open the Chat window and send a private message to a party leader.
Join: Invite the selected party to join with your party.
Uninvite: Cancel an invitation to the selected party.
Accept: Join the selected party.
Reject: Decline a pending invitation.
Close: Close the Party Search panel. http://www.guildwars.com/gameplay/gwnfeatures/partysearch.php