(if you are using a water bong fill it with cold water and add some ice, you'll really feel the difference)
Add a generous quantity of Salvia: always take the potency of the extract into consideration, remember that smoking a 40x extract for instance, would be comparable to smoking a big handful of leaves in one inhalation.
Get to know Salvia and your reactions to it first... after that, make sure not to ever underdose.
GET READY... make a commitment to yourself to remain consciouss throughout the experience and to be able to recall it...
Now, before hitting the bong and holding the smoke, make sure the Salvia Divinorum extract or leaves are really burning. What I do is I puff 2 or 3 times without inhaling the smoke, just to light up the herb (sometimes the extract will set on fire) and then I inhale as much of the smoke as I can
If you are not using a water bong try this: after you puff 2 or 3 times without inhaling, do the same thing again, but this time keep the smoke in your mouth and open it (without blowing) so the smoke starts to come out and then chase the smoke, letting it all in this time. Probably you are going to be able to do this 4, 5 or even 6 times in the same hit before exhaling. This is so the smoke cools a little before entering the lungs, allowing you to inhale a greater quantity.
If you are using a strong extract, this hit will be more than enough, so just get comfortable and close your eyes --- hold the smoke for 30 seconds or more. The effects will start to kick in at 15 or 20 seconds, and by then you'll just forget about holding the smoke and take off and start moving through interdimensional layers of reality
If you are using only Salvia Divinorum leaves or a 5x extract, you will probably start feeling the effects after the first hit... keep smoking and reloading the pipe as necessary, you'll have control of the intensity of the effects
Now, as soon as you feel the strong effects forget about anything else:
This is YOUR Salvia Divinorum experience, all kinds of thoughts, insights, ideas and revelations will start rushing trough your being, just let go and keep paying attention, don't give way to amazement, don't worry about explining anything to your sitter or even to yourself just yet. Keep observing, let go... keep observing, let go... keep observing, let go...keep observing, let go...keep observing, let go.