Rule what you know

Since we're taking a poll in these comments, my go tos for my brother are "Hey Brotato" and "Hey Broseph", while my sister gets called her shortened first name (which she doesn't even go by, and hates, haha). Only time she gets sis is if I'm feeling silly and yell "Oi Sis!!!" with a vague cockney or pirate accent for some reason.