1.) Eat more calories. ( but not from junk, you'll just get fat)
2.) Have workouts specifically for glute training.
3.) Train glutes twice a week if possible,
4.) Allow a day or two for recovery.
5.) Use progressive overload. (adding more weight as time goes on)
6.)
SQUEEZE! I can't stress how important is to make mental connections with you glutes with every rep.
7.) Practice contracting glutes during free time.
8.) Drink protein shakes, if possible in the morning, but DEFINITELY after working out when you muscles need it the most.
9.) Push yourself to go further with glute workouts.
10.) Lose weight first, the smaller your stomach is the bigger your butt will look.
11.) Stretch! Stretch muscle fascia will aid in the growth of muscles.
12.) Avoid long distance running.
13.) Do all cardio on a incline. (sprinting, walking, etc)