Sharing or even saving your doodles isn’t important. They also don't need to be finished.
Draw what’s in front of you. Any object will do.
If you’re stuck on finding a subject, follow a prompt ( e.g. Inktober’s “prompt list": words are meant to spark your imagination on each day of the month).
Try sketching your meeting notes. Use as few words as possible.
Start with something easy like drawing on a greeting card or drawing a small caricature of your face after your signature.