My dingbat ex-BF (who I live with) still smokes his Newports despite me trying to convert him (it's got to be on his terms, yes.. I know how this works).
Anyway, I did notice that he tries to direct inhale on the PV vs. drawing in the vapor before inhaling. I explained that it's more like a cigar than a cigarette - if you draw hard on it you're going to fry your throat. I hand him my 1000 mAh eGo battery with a DC clear carto on it, with my measley 12mg. PG/VG mix juice, and what does he do... takes a full direct hit, coughs his fool head off, and says "it burns".
I was not a heavy smoker, and was used to smoking lights (the strongest analogs I ever smoked were the occasional Djarum black - never drew hard on those either). Vaping came pretty easy to me - and I'm much happier now that I've found the right amount of vapor + flavor + nicotine.
The boy loves his cancer sticks. I think that for him it's going to be finding him the right tasting juice combined with strong enough nicotine - and a desire to keep working at it.