Most of us go from our beds, to the kitchen chair to eat breakfast, then to the car to drive to work, then to the work desk, then back to the car, and then FINALLY to the gym!
That is A LOT of "work" before you actually take the time to loosen up and STRETCH!
Arm circles are a quick way to loosen up your shoulders and get the blood flowing in your upper body.
If you are just waking up, take 5 minutes to do 20 reps clockwise and then 20 reps counter-clockwise.