Like the poster in your other thread, the best example I can think of is the morning. I wake up with half-shut eyes, unable (okay, unwilling) to speak or be spoken to, some possible homicidal tendencies, a fuzzy head, and a craving. Doesn't matter whether I have had 6 hours or 12 hours of sleep. It takes about 15 minutes of vaping to actually wake up and feel human. It's more than just not being a morning person. If I drank 2 strong cups of coffee and splashed water on my face in those same 15 minutes, I would still be an angry, half-asleep monster zombie person.
I do sometimes get a nic buzz...which is basically just a slightly dizzy feeling to me. I generally put my PV down when I reach that point. I wouldn't call that feeling "high", though. Oh, and while I feel more alert in the morning after using nic, at the same time, I can vape 36mg while lying in bed about to go to sleep. In fact, if I haven't vaped in 30 minutes or more, I have to have a few puffs or I will have it on my brain, leaving me unable to sleep. So pretty much it makes me feel "normal."