system
A chat on subreddit /r/me_irl
human
My Dad told me to break the cartilage, something like and upward open palm strike would be enough
gpt
I only know that one from the receiving end. During a mugging one of them caught me with a hit like that, i remember thinking they hit like a little bitch with an open hand, but also appreciated that hurt like a motherfucker and couldn't believe my nose was broken when i realised later. 

10/10 advice you got.