There are twelve types of customers, each with different levels of tipping and patience.

Average tips and impatient: Female student
Average tips and patient: Woman with brown skirt, man with grey pants, prom queen (little pink dress), male student
Bad tips and impatient: Punk boy and Goth girl
Bad tips and very patient: Grandma and grandpa
Good tippers and impatient: Businesswoman, businessman, bride (pink dress with tiara)