In some African and other cultures, shaking therapy is used for emotional healing. The literal- literally shaking symbolically wards shakes off your perceived emotional threat of fear, self-doubt, or worry. By doing a quick body shake, you can release the emotional attachments causing tension as you get blood rapidly flowing rapidly through your body.
Find a private area, (even a bathroom stall if you don’t have a conference room or office you can go into) and channel your favorite music performer, or do your best dance move, or mimic a wet dog coming out of the water. Start to shake, twist, or whatever you can do to get your whole body moving for about 30 seconds. Take a deep breath and go on with your day.
As a bonus, you might end up laughing as you shake, boosting your mood and further reducing your stress.