During her third year at work, Jenna used to exercise regularly and eat healthfully. After joining a new team, her coworkers often go out for greasy lunches and late‑night takeout after projects, and Jenna has put on about 15 pounds. She wants to get back to healthier habits, but each time she suggests bringing a salad or skipping the after‑work food runs, her teammates insist on ordering pizza and burgers. What type of influence are her coworkers exerting on her behavior?
