You can choose not to inhale by not drawing the smoke into your lungs. A short shallow sucking type action using your checks or a shallow,short inhalation using you mouth and lungs results in the smoke filling your mouth. Doing it the second way will still result in some smoke in your lungs about 1/4 or 1.5 of the time unless you actively try to check your self. Basically, it's smoking the same you smoke a cigar but a bit more aggressively and often. That is basically the way I smoke as i'm not interested in clouds and I never really like the sensation of making smoke in my lungs. Of course I never liked cigarettes so that probably has something to do with how I smoke as does the fact that I have been using pipes and cigars for year before I started to use a narghile.