Through a lot of testing, I've figured out the method that works best for my hair. I'll apply the dry shampoo at night before going to sleep or right before working out, which works best when I divide my hair into sections and spray the bottom sections first, working my way up to the top.
I massage everything in, like I'm lathering shampoo, and then I run a brush through it.
Image Source: POPSUGAR Photography / Renee Rodriguez