I also did not use a brush to apply, just my fingers, and only used about half of the egg white (I saved the rest because I hate wasting and I thought I'd do the mask again at some point).
Do not expect to make any facial expressions once this thing starts to dry. And expect weird, slightly concerned looks from your dog. It tightens, a lot. Which feels amazing. Once the whole thing is dry (10-15 min), peel off. It will more than likely come off in pieces (not one, graceful piece as the picture depicts). You may need to use a wash cloth to remove the remianing egg white.
I defnitely noticed smaller, cleaner pores and plan on doing this mask once a week. Maybe when spring finally rolls around, my face will stop being such a baby. But this is a nice treat until then.