Not to disclose too much about my OCD behavior, but my puffing cadence is always in threes. Sip...sip...puff, and on the third puff, I exhale through the nose. The previous two sips are let out through the mouth.
I also do the "french inhale" when trying tobaccos, I find it helps me savor the aroma of the tobacco. The closest I get to sampling the room note without leaving the room and coming back in after a minute or so. I also do this because I'm lazy. ;-)