Deadlifts
Perfect this movement with your bodyweight and then grab a weight for extra resistance, engaging the glutes the entire time. Change things up by focusing on timing; lower down on a slow three-count, then squeeze the glutes as you return back up to standing position on a one-count.
Wall Sits
Turoff says this effective and simple exercise activates your glutes, hamstrings, and quads. Try a 1:1 approach by working for 30 seconds and resting for 30 seconds, then repeating 3-4 times until you feel the burn.