For the record, Salvia can't make you "trip," as the term comes from Tryptamine, which does not exist in Salvia.
It gave me the pins+needles sensation for about a minute and a half, and then went away. The experience was entirely unimpressive; you'd probably have to pay me to do it again. You'd be better of spending your money on getting drunk.
You obviously didn't do it right. You failed at doing it, don't advise him against it.
Haha, the part about uncontrollable laughter is definitely true, after only like 3 hits you'll probably be unable to stop. Remember to use a torch lighter btw.
What I'm about to say is very important for you, if you want to actually trip:
1. Use a torch lighter!
2. Hold the smoke in! It should only take ONE hit to get you to trip, so don't blow your smoke out for any reason. I only blew mine out because the trip hit... like a train
3. Breathe out before you hit, slowly hit it until you can't breathe in anymore. You'll need enough Salvia packed to do this, and also a water filtration devise to smoke out of. Make sure you're constantly torching the salvia. Don't worry, this smoke is actually very smooth