Ok guys I have a few personal experiences but here are somethings that have kept me higher longer and made the high stronger. Also I realize MAry affects everyone different but for the most part its all the same. Please feel free to add your ideas! 
1. I found that when I smoke anytime before or even after I play basketball with friends or simply jog around I feel at least 3 times higher when I get home and watch tv. I dunno if its the adrenline or what because people say dont talk to cops while high because you will get nervous and your adrenline will kill your hi, but whenever i get my blood pumping faster it seems my high goes up. Also even if I dont smoke that day and work out really hard or run round I will still feel some high at the end. Probably because I smoke everyday and there is still some thc in me.
2. Bong!!! i think this one is obvious, bong rips get you ripped!!
3. and I also found that if your a heavy smoker like me actually quittin for a day or two will help you out. Your next hi will be better and last longer, But do you wanna wait? i never do

1. I found that when I smoke anytime before or even after I play basketball with friends or simply jog around I feel at least 3 times higher when I get home and watch tv. I dunno if its the adrenline or what because people say dont talk to cops while high because you will get nervous and your adrenline will kill your hi, but whenever i get my blood pumping faster it seems my high goes up. Also even if I dont smoke that day and work out really hard or run round I will still feel some high at the end. Probably because I smoke everyday and there is still some thc in me.
2. Bong!!! i think this one is obvious, bong rips get you ripped!!

3. and I also found that if your a heavy smoker like me actually quittin for a day or two will help you out. Your next hi will be better and last longer, But do you wanna wait? i never do
