I finally figured what "sipping" a pipe means... I know this sounds weird but I used to be a cigarette smoker and I inhaled smoke into my mouth by using my lungs and not breathing while doing so, not by suction. You are supposed to sip exactly like you are with a drink and breath normally while doing it. I hope this helps any ex-cigarette smoker or newbie(like me) who is trying to find out how to keep the pipe bowl and the smoke cool.