We're not supposed to judge books by their covers, but it's no secret that hiring managers judge job candidates by their appearances.
So avoid wearing too much makeup and definitely don't show up wearing a hat. Instead, you'll want to dress relatively conservatively. Even your shoes should be clean and tidy. Dress stylish, but not trendy- no jeans or tennis shoes.
The color of your clothes matters, too: According to a CareerBuilder survey, blue and black are the best colors to wear to a job interview, while orange is the worst.