Carry a briefcase 

 Arriving to work and leaving with a briefcase every day gives others the impression that you are hard at work, even away from your desk. You might only be using it to carry your lunch, but it still gets the message across. 

Sit up straight 

 Sitting up straight and standing proud are body signals that point to a confident and driven man. You don't want others to see you drooping in front of your computer, unless you're in the middle of pulling a late night stretch to finish a report. 

Be on time 

 Nobody likes waiting after others. Behave in the manner you expect others behave with you. Follow the old saying; "Don't expect me to be early, but I will never be late." Just be punctual. 

Know what you're talking about 

 Browse through the morning paper, catch the latest developments in your industry and know what's going on at work. You want to be in touch with your work at both the micro and macro levels. Keeping yourself informed can only help if you plan on making a move to a bigger and better organisation. 

Always have a joke ready 

 Although you don't want to be known as the office clown, you want to be able to crack a joke when the time is right. And what better way to set the mood for an office party than by cracking a really good joke? 

Stay away from gossip 

 As fun as it may be, office gossip is a deadly weapon that can end your career in very less time. Neighbourhood gossip is ok. You are human after all. But don’t ever gossip about who is going around with whom in the office or whom did you see kissing at the mall the other night. You could end up in a huge trouble, stay out of all this. 

Learn to shut up 

 Sometimes the best way to sound smart is to shut up. Although it's good to participate when you do have something valuable to say, if you're only going to bring up old points to a round table discussion, then you're better off saying nothing at all. You might even look like you're really analysing what others are saying by sitting pensively. And by all means, never yell at others. 

Always be in control 

 You don’t have to talk about everything that you are facing. Even if you have a problem with your superior, don’t make an announcement of that in office. It will make things worse if he learns about this. Let your peers and especially subordinates believe that you're on top of things, and they will respect you for it. And in turn, your superior will be impressed. 

Watch where you surf 

 Remember that the workplace should be one of decency, where you abstain from visiting questionable sites during your free time. Forget about that nudie site where you can see your favourite actress in the flesh. And while you're at it, cut your surfing time too. 

Be a leader 

 Don't be afraid to take on the role of a leader when necessary. A veteran employee is retiring, organize a goodbye party; someone is being promoted, set up a happy hour with your co-workers. Take initiative and others will take an instant liking to you.

Note: This article is from Economic Times