Drunks=wierd. "Why are these people acting so fucked up?" (because they are!)

1-2g's for your first time would be good. I would suggest buying an 1/8...and take 1gram...once you get the feel for it, pop the rest if you want. Or give them to friends if you're content. It's a really cool experience. Just surround yourself with trustworthy people. Listen to cool, calm music... (Tool is a mindfuck, if you want to be blown away) Don't take them if you're feeling scared about it....that's what leads to bad trips.

Just remember, you're under the influence of a drug and everything will be normal again in 10 or so hours. Keep that in mind to keep yourself from losing control. You WON'T be stuck in a trip forever. You aren't going to die. And finally, your friends AREN'T plotting against you. Have a great time. Enjoy the world of psychadelics.