help pleaseee...

[hmmokay]

Hey everyone. Swim is really interested in trying nitrous for his first time, probably tomorrow....but he really has no clue how. The only way he can get it is from a whipped cream can, but he have no idea where to begin. Swim heard of people using balloons, and recycling the nitrous/air by inhaling and exhaling over and over again in the balloon. Is that what you're supposed to do, or is it better just to put your mouth straight on the top? Can anyone describe it step by step for swim? Swim actually tried it today, and filled up a balloon with the gas, inhaled all at once, held for a few, but felt nothing. Not even a head change....what did swim do wrong?

P.S. Would it be better for swim to do it while high? Swim heard that it is a very interesting combination.