Three quick tips to improve your whiteboard techniques:
1. Fifteen Minutes. Practice new sketches and learn 15 minutes per day using the Sketch-by-Step free app.
2. Markers. Bring your own markers in a case to meetings. Bad markers add fog to your message. Keeping a set of markers with plenty of ink and solid tips will make you look good!
3. Posture. Prevent smudges by resting your pinky finger on the board to avoid leaning your hand or arm on the whiteboard that can erase marks.