I can demonstrate a bit, though some of the things I can do are a bit harder to show. Telepathy, Healing, Psychoempathy, and Precognition for instance.

[But as he says this, he's already starting to float just off the ground, and several large boulders are with him. A sense of heat fills the air around them as he does so, though it's entirely in the mind, a byproduct of the power he's using.]

The Light Side of the Force isn't prone to flashy displays of power, and the Dark Side sound never be used without great need.