BONUS TIP: Getting Even More (out of) Faces

Telling iPhoto when it guessed incorrectly is helpful, but even more helpful is telling iPhoto to whom the errant face actually belongs. With iPhoto 8.0.2 or later, you can Control-click on a thumbnail in Confirm Name mode to assign a different name to a person.

Macworld posted an excellent article about 7 Faces tips: Read it here.