It depends on what I'm smoking out of, and the mood I'm in, and how much I'm smoking.

If its a joint, which I rarely smoke, especially solo, I will smoke it as fast as I can.

A bowl, then usually I'll just wait a little bit in between hits. Maybe 10 seconds or so. If I'm smoking more than 1 bowl though usually I'll take a few minutes in between bowls, I'll pack it, then hop on the PC for a lil while until I feel like going back to the window.

Gravity bongs I usually let the bucket sit by the window and I'll pack a bowl, go take a hit, and come back and pack another bowl and do somethin' on the computer for a few mins since I don't like pulling grav after grav real fast.

Sometimes if I'm feeling wasteful, and especially if I'm starting to feel high when I'm smoke I will cherry my bowl for the fun of it. Like how people get cigars started and whatnot, and cherry it for as long as I can until I kill the thing. Only holding the smoke for like 1 second.