This exercise is a great one to end a butt and hamstring workout with. Focus on the contraction and squeeze of the hamstrings and glutes. This takes mental focus and may take practice. Perform this exercise in 3-4 sets of 20 to 25 reps.
The walking barbell lunge is a variation of the lunge that focuses more on the glutes (or butt muscles). You can step wide for adductor (groin), or across the body for even more glute activation. Do in 2-4 sets of 10-20 reps each leg.
Seated Dumbbell Wide Angle Curls
Hyper extensions (emphasizing glutes/hamstrings)
Walking Barbell Lunges
Cross Body Hammer Curls
This exercise is great for developing the inner head of the bicep muscle. Place your back firmly against a bench at a slight incline (100° roughly). While keeping your elbows tight to your body, control the weight up-and-down focusing on the contraction. You have to use lighter weight for this exercise than your typical bicep curl. Perform this exercise in 3-4 sets of 8-15reps.