Heres what I would do what I have done that usually works quite well. First, fashion yourself a good working gravity/compression bong, make sure its airtight, the bowl fits right and you can get a lot of smoke. Make sure you know how to take a proper hit and hit that sucker with all you got. Torch a .5 gram right then and there in gravity bong hits. Then after your 2 or 3 rips off your gravity/compression bong (should onlybe 2 unless your torching more than a .5). Pack a nice big bowl and hit it until it's gone. Then proceed to keep packing bowls until you only have a .5-1.0 gram left. Wait until you feel yourself start to burn out/come down and smoked whatever's left.
BTW if it was me I'de get a close buddy to come and make sure he brings atleast a gram, it will be funner...I think anyway.