First things first, if you’re going without a tie, make sure you feel confident in doing so. A lot of men wear a tie because it makes them feel better about themselves, while others take their ties off once the event is over.
However, if you want to go without a tie, you need to make sure that the shirt lies flat when the top button is undone. This top button is often used to keep a tie in place, so without a tie, it’s not needed. When going without a tie, you can pull off a patterned dress shirt easier than with a tie (since you don’t have to match colors and patterns). However, be ready to have more confidence. If not done in your office often, people will stare.
With aplomb! If you choose to adopt a certain manner of dress, then do it with confidence in order to avoid embarrassment or ridicule.
Many men are now wearing suits without ties, in fact. To remain looking professional, take care in the choice of shirt and how it lies under the suit. You cannot do up the top button if not wearing a tie, so the lie of the shirt, when open, must be neat.