Lucy says that she doesn't "wear a lot of make-up to work," meaning she doesn't put on a lot of things on her face in order to go to work. She just puts "on a little blush and light-colored lipstick." Blush, "blush," is a pink powder that women put, usually, on their cheeks. That is the place underneath or below your eyes, next to your nose - on either side of your nose, those are your cheeks. It's a pink powder. Powder is when you take something and you break it up into very small pieces, and it's so small that you can take your hand and thepieces will stick to your hand - they'll be on your hand; this is powder. So, blush is a powder that you put on your cheeks, well, women, usually, put on their cheeks.