Don't try it; even the secondhand smoke can get you wasted. The straight stuff is really potent. If you're there and need to unwind, hit the zero-gravity steam baths. The multicolored steam is laced with very pleasant euphorics, you pick your own background lighting and music, and you just drift around the chamber, both figuratively and literally. A few hours in the chamber mellows you out for days, soothes nerves and muscles, even removes toxins and does some healing and tissue repair. Hell of an experience. 
