>>36801712>Not making your character a helpless person that needs rescuing all the time>Not making a more powerful, opposite gendered, background character the GM can use if he wants to.
I almost always do this if given the chance. I had a priest (As in, can't wear any armour, has fuck-all defense or offense capabilities, and was basically just a healbot) who had a NPC older brother who the GM said was always 5 levels above me. This meant this sick Paladin-out-of-nowhere would show up and buttfuck anyone dumb enough to fuck with his sister.
Was especially funny when one of the other PCs died, and made a bard who tried to hit on my character. He did it once. Just once. He almost had to reroll because of it.