2. Lipstick. Guess you have got one.
3. Loose Powder, Lo'real Mineral loose powder in Waltmart. About $10.
4. Brush. Lo'Real or many others in Waltmart is OK. About $10.
Total: About $30.
I tend not to use mascara b/c there is a chance that it can go to my eyes or melt it and make me nervous in the interview. Also, 眉要修整齐干净.
Good luck.