Seniors consistently rate entertainment as the single most important element in a successful graduation party. Good food, decor, venues, and even music all play a part in a good grad night, but entertainment will be the most memorable element of all.
Successful grad night parties will have multiple activities going on and offer a variety of entertainment. Some entertainment will be passive (DJ, movie, etc.) and some entertainment will be active (physical activities, etc.). The key is having plenty for the students to do.