High up on my horse right now! I have noticed quite a few people calling what they do "doodles". If you are intentionally using paper and pen, pencil or any other medium to make deliberate marks on paper - you are DRAWING (sorry about the raised voice). Doodling is mindless, no direction, no intention and your mind is occupied elsewhere. In a meeting, I doodle - my mind is concentrating on what the speaker is saying, or in some cases, what I am cooking for dinner. While on the phone, I doodle - my mind is thinking about what I am saying, whom I am saying it to etc .... do you get the picture.
So, in my opinion (and you don't have to agree with me), when you intentionally draw something it is called a drawing. When you intentionally draw something using the Zentangle method of string and patterns, you are tangling and you have created a Zentangle.
I know that a lot of you, probably most of you, put in a lot of effort and thought into what you draw, so please don't degrade it by calling it Doodling. You are drawing.
Okay, hopping off the horse before I get bucked off for now.
Happy tangling .... Jane x