Yeah, reading about all the effects, side effects, timing etc will make you more prepared and comfortable, so there is enough around here to fulfill that need. For the slightly less obvious tips I would say: Make sure your body is fit and that you have eaten something decent beforehand, because during ecstacy you will likely eat nothing and wear your body out. (also "water ice"(icecream?) tends to make people on M happy)...
Perhaps it would be nice to warn a friend beforehand what you are going to do, because if you're getting a nice social buzz, you might have a very strong urge to chat with someone about it.
And, although sitting inside with friends is nice, you might get the urge to go out and go walk, jump, dance or whatsoever, so perhaps you should think of a setting where you can start safe and easy, and then later on make the choice to do what you want.
Last but not least: don't be scared & have fun
