Search for Vaporizers 101 on youtube. It's a good video for those new to vapor.

What is the best way to do your breath?
Slow and easy is better with vapor. The harder you draw, the more cold air you pull into the heating chamber. That drops your temp, sometimes too much. With the right temp setting and the right draw, it should be easy to tell you're getting vapor. There is a learning curve with a whip vape. You'll get the hang of it.