Both of these options are found, reasonably enough, under the Options menu on The Palace. When you choose Find User, you will get a list of everyone who is on the same Palace with you. You can highlight a name and click the Go To button to join them wherever they are. Double-clicking on the name serves the same function. This is a quick and easy way to go see someone specific.

Suppose, however, that you enter a Palace and just want to find someone... anyone. One useful thing to do then is to use the Goto Room option. Choosing this from the Options menu gives you a list of all rooms on the current Palace, along with a count of how many people are in each one. If you lose the class some Wednesday evening, this is a good way to find them. Once again, double-clicking on a room will take you there directly.