I applied online. I interviewed at Candy Doll Beauty
Interview
Just be nice, friendly, and presentable. Appearances do matter since it is an Asian beauty store, though you don't need to have perfect skin or a super stylish look. The main questions are how familiar you are with the products/brands and what times you're available. Easier for college students since they prefer all day on weekdays (no part-time there) and doable for high school students if there's a weekend availability.
Make sure to check if the interview is in Stonestown or Japantown.