I'm pretty rubbish, as we say in Britain, artwise, and I always envy people who can pick up something and even do just a little doodle of someone that looks vaguely like them. It's impressive.
I would hardly call myself an artist in that sense; I doodle, I draw, I'm not a trained artist, I couldn't sit down and do an accurate portrait of anyone.
I learned how to draw from being bored in school. I would doodle on the margins of my paper.
We are visual creatures. When you doodle an image that captures the essence of an idea, you not only remember it, but you also help other people understand and act on it - which is generally the point of meetings in the first place.
I doodle all the time, even if I'm on the train.