After I finish puffin,I hold it for about 5 seconds I let a little bit out and take a small breath and then after maybe 2 seconds I let out a little more and then take another small breath and hold it for about 2-3 seconds before letting the rest come out slowly....not too slow,but I dont just exhale it out with force you know?
But then again,if I got alot of weed I just inhale and hold it for a few seconds before slowly letting it out.