Make sure you bring a pen or pencil.

Wear your class "A" Uniform.

Obtain your own Den Chief Handbook.  It's available at the Council Scout Shops in Cedar Knolls and Mountainside.

Several days before the class, take the on-line course, Den Chief Training Fast Start, https://filestore.scouting.org/filestore/training/den-chief-training/. It should take about 30 minutes to complete.