Gifted Instructor
With this Flair, an Avatar can help someone else become a quick learner (per the eponymous Flair). When she makes significant efforts to tutor a student in a subject—a distinction best left up to the Storyteller—the experience-point cost for purchasing dots in the Ability the teacher teaches is cut in half, rounded down.
The catch built into this Flair is that a Avatar cannot teach a student an Ability that she (the teacher) doesn’t have. Nor can the teacher help a student surpass her in mastery of a subject—which is to say, the Avatar cannot teach her student more dots in an Ability than she (the teacher) has.