Position yourself for power and productivity
3 Postures to Boost Productivity Now | Entrepreneur.com
1) Put your hands on your head with your elbows out. This encourages you to sit up straight and open your chest, a position that makes ideas flow more easily. Try it when you're thinking through a problem.
2) Rest one arm on the chair next to you. This doubles the amount of space your body takes up, which makes you feel more powerful. Try this during a meeting or an important phone call.
3) Extend your legs or prop them on a footrest. Sitting at a computer restricts your body, which makes you less productive, so stretching out your legs is a way to counteract that. Try this when you're answering email.