You can make a far better circle than most of us can draw freehand by squeezing your ring finger down in the center of your circle and twisting the paper (though it may take a bit of practice). To see it in action, watch the video. One email at a time, improve your life. Two emails from different people at once, create spam.
You may draw a circle from the center by holding the Ctrl key (in addition to the Shift key). This gives you a perfectly circular drawing.
Here's the deal: take a pencil and some paper and set aside five minutes. However, instead of gazing at the page while sketching, spin around, raise your hand, and draw just at your hand, not the paper. Your goal is to sketch the creases, folds, and markings on your hand rather than the complete hand. You'll be surprised by how accurate you can get with just one hand!
After five minutes, look at what you've done. Most likely, much of it will be terrible. Don't worry about that now. Just put down whatever you're doing right now and pick up where you left off later. Creative people learn by making mistakes and getting out of their comfort zones. So give this a try and let me know what you think.
4 Techniques for Drawing a Perfect Circle Without a Compass
Hold down the button. Shift. In the drawing area, use the mouse to click and drag. Instead of the usual ellipse, the ellipse tool will create a complete circle starting from where you click. You may drag the mouse to change the size of the circle before releasing the mouse button. Let go of the mouse button. The cursor will reappear in the original position.
5 ways to draw a perfect circle in Microsoft Paint.
Without Even Using a Pen!