Holding it in.

[Juicy J]

I heard somewhere that it only takes 2 seconds for your lungs to absorb most of the THC. Though I guess that holding it in longer would deprive your brain of oxygen and boost the high.

Yeah like 90% of the THC is absorbed in the first 2 seconds.. Unless your real short on bud, theres no need to hold every hit in as long as u can...

[Ice006]

I do some real crazy shit when I smoke. I'll get a lungful, hold a few secs, breath out only halfway, then breathe back in and hold again. Works for me anyway. Gives my lungs a bit of a break, but still holding enough smoke to get me trippin that little bit extra.