Here are some ways to draw a signature in Word:

1. Write your signature on a piece of paper and scan it as an image file. Then, insert the image file into your word document and resize it as needed.
2. Use the Insert > Drawing option in the top bar and select a pen to draw your signature with your mouse or touchpad. Then, save and close the drawing and adjust the size of the signature.
3. Use the Draw tab and select Drawing Canvas in the ribbon. Then, draw your signature with your mouse or touchpad and place it where you want it in your document.