your sexual urges will be off the wall so be ready. i think you are gay(sorry if im wrong lol) so make sure ur with some guys ur comfortable with. because honest to god man, you will not be able to hold yourself back. unless you are able to suppress yourself very well, but your not going to want to do that. Do you know what kind it is (ex. blue dolphins, teddy bears, double stack, triple stack, quad stack) quad stack blue dolphins are the best ones. try and get those if u really wanna throw yourself somewhere
For hydration- right after ingestion my friend, i suggest you drink one full glass of orange juice (opens the pores, lengthens and strengthens the trip) then after that periodically drink a cup of water. say about every 30 minutes. "stick to it, dont over do it" you dont want to drown from the inside out.
The onset- the onset will take about 30-45 minutes. (during this time drink ur oj)
after it hits you, it will take about 5-30 minutes to get to your firm plateau. this will last for 2-3 hours (sometimes more if u drink ur OJ)
Coming Down- this will last 1-2 hours. i usually get in a hot tub at this point (totally orgasmic) plus it keeps you hydrated.
try not to clench your jaw too much. it will be soar the next day if you do.
most of all though, have fun!