If you always put yourself before someone else at your workplace then you might as well say goodbye to your career. If you're a part of a team then you absolutely need to learn how to be a team player. Whether or not you like someone, you're getting paid to get the work done so learn to put up with things anyway.

Irrespective of how effective you are at doing your job, taking way too many breaks will only reflect badly on you. Sure, you might need to stretch your legs or take a coffee break but it shouldn't become bothersome to the people who are at their desk and have to fill-in for you while you're gone.

Yes, even if that's a part of your job description, try not to be too loud when you're on a call with someone. Not only will it really annoy and disturb those around you, but people will also start thinking that you don't have basic manners. Try to find a corner or a room in which you can talk freely.

If you open the fridge and see a really tempting looking sandwich and you know it doesn't belong to you then don't eat it. That's someone's lunch so it isn't fair that you eat it and don't leave anything for them. Not only is it super childish but it is also plain rude.

If you work at a place where you get weekends off then by no means should you disturb someone on the weekend for a work-related thing. They have the right to enjoy their two days off in peace so wait until Monday to bring their attention to the issue.

It's always a good idea to give your manager or your teammates a heads up if you're running late even if you're not on a particular shift. You can't just waltz into your workplace at any time you like so it's best to just call ahead and inform people anytime you're running late.

When you post something on social media it is out there for life. Remember nothing is private once it is on Facebook or Twitter. If you are looking for a place to vent or rant about work or your colleagues, a Facebook post about it for everyone to read is not the answer. It can backfire and have major consequences.

Keeping someone waiting is rude and tardy. Everyone's time is precious. If you are running late, let people know.This way your colleague or client can adjust their own schedules. Give them at least a two-minute warning.

The tone of an email can be difficult to read sometimes. So you'll want to make sure to use language that the recipient will understand. Be polite and clear with what you have to stay without coming off as harsh or rude. Use exclamation points in the right places, don't go overboard.

Again, this is something that needs to go without saying. When you're at work, then you can't really sit and watch things or listen to things on loudspeaker because it can be really disturbing for the people around you. Always use your earphones and if you don't have them either borrow a pair from someone or don't watch your video.