The working world is unbelievably small, and you may end up working with some of those same people again. Make someone feel big. If you give a compliment, be sincere and say it to their face. Follow the rules. There are lots of stories about valuable employees being fired because they violated company rules.
Many companies have zero tolerance for such actions.
Don't say anything or put anything in writing that you wouldn't want revealed in a courtroom. Mind your space. Be a good office neighbor. Keep your space clean, free of bad odors, and don't talk so loudly on the phone you can be heard two blocks away. By looking at what didn't work, you'll turn a negative experience into a positive one.