Draw enough to recognize the subject.
Examples of Gesture Drawing curated by aed303 (class board for pre-service elementary teachers taking art) on Pinterest.
Tools for Self-Educating Artists at Figure and Gesture Drawing
This a cool website where they provide timed photos (you choose the timing) to practice a gesture drawing! Start with the standard session and be brave! Work down from 10 minutes to the 30 seconds time interval!
This post was modified on 9/28/2015.