Posture can affect a lot of things, including our confidence and how other people feel about us. Teach yourself good posture by practising these exercises from the Army Field Manual. Good posture is a habit that pays off over time.
The Army Field Manual features 10 exercises that require you to move in a variety of different directions and ways. I found performing Exercise 1, which involves a lot of arm swinging, to be particularly relieving when I get out of my seat. Some of these exercises are pretty conspicuous and may be difficult to do in a suit or formal pants, but a lot of them can still be performed in the workplace.
These exercises are great to get you out of your seat. While you're in your seat, you can do yourself a favour by fixing your computer hunch and other posture problems.
WWII Workout Week: Posture Training [The Art of Manliness]