Like another poster said, take the vapor into the mouth, and then inhale from there.
Most new vapers try to inhale the same way they smoked at first, and PV/VG both have a tendency to dry out the back of the throat on contact, so you'll experience a phenomenon I like to call 'vaper's cough' at first. Keep water or another drink on standby until you've become slightly accustomed to it.
Vapor's a bit less 'thick' than smoke is, so you won't have exactly the same sensation in your mouth... but trust me, it works out really well!