Well, I tried deprenyl as a 'smart drug' years ago and I also did it 'recreationally'. Tried it as a smart drug while I was taking some classes and couldn't handle it for that purpose as it overstimulated me and caused insomnia.
I Did the rest of my supply 'recreationally' over the next few years. The effect of deprenyl on me is to make me feel like I'm speeding on crank, but just a little. I mean just a tiny amount I feel like I am nibbling on the old mini-whites. The feeling isn't very strong, but it lasts forever. I builds slowly with daily dosing and lasts a couple days, tapering slowly. I used to use it for camping trips or concerts, situations where I would want a lot of energy for a while but I would be able to use cannabis for sleep.