Once you accept the position, you accept the terms. Doubts or lack of clarity must be addressed prior to accepting a position. This means that you’ve reviewed, clarified, and accepted: terms of compensation, the desired dress code, the work hours, the tasks, who you report to. This is not a charity or a class where you show up late or pull a no-show. They are investing both money and time in training you. Avoid voicing your opinion on how you would change things. Avoid participating in gossip. Never bad-mouth a previous employer/boss. Don’t expect to be invited to all employee functions, especially 'happy hour.' Learn as much as you can. Maintain a pleasant and civil attitude. Upgrade your presence and language; these are not your buddies.