I think I had it once at a party a few years ago, or something similar. It seemed like the tempo of everything slowed down, and it was hard to understand what people were saying, but ordinary sounds became more clear, like I could hear a girl across the room tapping her fingernail on a wineglass that I couldn't hear before. All the lights had a weird, shimmering rainbow aura around them, and smells became much more earthy, like there was wet dirt in everything. I felt my heart fluttering once or twice, and every now and then something would startle me and it would feel like I had a knot in my stomach. I had been drinking beer but I found it became really bitter. Somebody gave me a martini and I could drink it like water, I didn't taste it or feel burning or anything. Later that night a friend said my eyes were really bloodshot, and I remember it felt like I hadn't blinked for a long time, because every time I did it felt like my eyes were closed for a really long time, and the colors in the room always seemed a little different when I'd open them again. I tried to avoid looking in mirrors, but I got a glance of myself out of the corner of my eye and it looked like my lips were really thin, but my friends said I looked normal after taking it. The next day I had cottonmouth really bad, a splitting headache, and ringing in my ears but I don't know if it was from the motime or from something else. I wouldn't do it again, the trip isn't good enough to justify the overall weirdness and migrane-like symptoms when you come down.