careful with the dose.. it depends on your size. I took a little less than an eighth and was trippin balls and then ate the rest of the shrooms on a totally different day and STILL tripped. Depending on the shrooms.. a little can go a long way and you don't want to get so fucked up on your first time that you freak out. I would get an eighth and eat half and see what happens and if you're feeling up to it just eat the rest.

My best advice would be to do it in a very safe and familiar location away from authority figures. And do it with someone you trust.