Meier said the biggest mistake people make when going to happy hour with their coworkers is overindulging in alcohol and not knowing their limits. This can be especially dangerous because drinking too much can sometimes lead people to say things they wouldn't normally say in the workplace. "I would say loose lips sink ships, and that ship, in this case, could be your career," Meier explained. "At the end of the day, with alcohol, we lose our inhibitions and, with that, our judgment. Sometimes we say things or do things we wouldn't usually do in a workplace."