Skipping into the bathroom before her Care of Magical Creatures class, she just needed to put something on her face. She was never good at this so she needed more time.

Muggle make-up.

Erin walked towards the large mirror opposite the cubicles, moved closer and started fiddling the things from her bag. Oh there it is! First things first, powder. And then, the blush on. Bam! She doesn't know how to use this.