Leg Lift

How to do it

While standing up straight with both feet next to each other at around shoulder width, grab a sturdy surface such as the sides of a squat rack or the top of a chair to brace yourself and keep balance.
With or without an ankle weight, lift one leg behind you as if performing a leg curl but standing up while keeping the other leg straight. Breathe out as you perform this movement.
Slowly bring the raised leg back to the floor as you breathe in.
Repeat for the recommended amount of repetitions.
Repeat the movement with the opposite leg.

What muscles does the Leg Lift work?: Mainly the glutes, with help from the hamstrings.
What equipment do I need?: Nothing but your bodyweight.
Is it good for beginners?: Yes, it is rated beginner level.
How do I track progress on it?: Log each set and beat the weight or reps from last time. Liftrung shows your last set beside the next one and estimates your one-rep max from your sets.

Exercise descriptions: free-exercise-db, public domain.