ISTJ: Probably keeps to themselves and follows all the rules, staying out of troubleISTP: Is deadly silent so everyone gets scared and leaves them alone
ESTP: Acts confident, assertive, and tough, fitting in well with the bravado of everyone else
ESTJ: Gains the respect of a few people immediately and becomes known as a powerful leader
ISFJ: Helps everyone with their advice, but has a very subtle presence so they don't pose trouble
ISFP: They probably just work out and chill in their room. No one is really bothered by them
ESFP: Aggressively flirts with everyone, disconcerting them
ESFJ: Is so nice that people probably turn to them for help
INFJ: Skilfully alienates everyone by psychoanalysing them in a clinical manner
INFP: Tries to be nice enough to everyone so that they won't get killed, gets shanked anyways
ENFP: Stages a protest but doesn't organise it very well and winds up in solitary confinement
ENFJ: Becomes a parental figure in the prison, manipulated half the people into doing what they want
INTJ: Periodically starts debating people on everything and ends up getting death threats
INTP: Passes by quietly enough not to be noticed
ENTP: They probably dramatically escaped within the first week
ENTJ: Thought about staging a rebellion, but instead decided to blackmail the prison guards and ends up secretly running the place