depends, are you driving at the time? what time of day is it?

If its late and everyone is asleep i just blaze in my car, dont really need to hide it.

if your driving just wait until not many people are near you and take a hit, drive with you knee if you have to, ive gotten pretty good at it but mostly a friend takes the wheel while i hit it.

if your parked during the day, just duck down real low so nobody can really see you. be ready to bail though if you see any cars drive by suspiciously, especially the po.

cracking your window is usually a good idea too, and when your done blazing, roll down all your windows and drive for a couple minutes to let your car air out. its cold this time of year but its still worth it.