SWIM, who for various reasons has to hide his habit from various individuals has developed some techniques that he thought would be usefull to pass on to this group. Some of these will be obvious to most, but you never know. Hopefully others can comment and add. 1) Always have a liquid (preferably water) available when snorting. Immediately after snorting, dip a finger in the water, place finger in nostril and inhale hard while covering other nostril. This does a number of positive things. It helps keep the little uninhaled fragments from falling to the floor, lost forever in the carpet fibers. It helps cover up any other loose fragments on your face. And it helps disolve any large chunks in your nose so they don't fall out an an inoportune time. 2) Always have access to a mirror before confronting other people. Do a thorough nostril check and use water as in (1) if needed. 3) Try to avoid licking any surfaces that have coke on them. Although it is quite an enjoyable feeling, the innevitable lip smacking and toung rubbing is a dead giveaway to shrewd observers. 4) Bumping is preferable to lines for a variety of reasons. First of all, it greatly lessens the items needed. Also, rolled up bills and cut straws have a habit of showing up in the wrong place. 5) You will almost always have nasal issues while doing coke. From constant sniffling to flat out clogging. Pro actively mentioning that you are coming down with a cold / alergies can defer suspicion before it starts. 6) If you intend to be kissing someone you are hiding it from, make sure to brush your teeth thoroughly first. The taste is very unmistakeable. 7) If doing it in a bathroom or other room where people could hear you, remember, the sound of a long continous inhalation is pretty obvious. Flushing the toilet and / or running water can cover the noise to some extent. Another reason bumping is better since it tends to be a quicker inhalation. 8) Pupil dialation. I would say he has checked and it doesn't seem to be a problem for him. But if it causes You to have your pupils dialate, just remember, the two things every good cop does after pulling someone over is smell for weed or alcohol and look at the drivers pupils. Of course you could always try to tell the cop its because you are extremely attracted to him. Good luck with that one! Hope these help you! Oh, I almost forgot one more thing SWIM mentioned: An empty CD case makes an excellent makeshift surface. I like to open it up flat and place substance on the upside down plastic lid side. Then, you can close the other half on top when finished. As long as it is kept horizontal and not jarred too hard, it will be a fairly safe container. In the meantime, it can be stored in a variety of places without drawing attention, but opened up for use very quickly. Quite a usefull thing!