Even with realy strong trips like ibogaine and ayuashca not everyone "gets there" the first couple of times...
Its basicaly eat it or smoke it...
Smoke = strong trip, short duration (at least on this side)
Eat = longer trip of more moderate duration.
http://www.youtube.com/watch?v=brEvQskNgjE
This is a 2 part clip... she shows how much you need to chew...(fresh... it just gets left to ferment in the sun for a day) - not sure if it is part one or part two.
The absorption takes place through the mucus layer in your mout and under your tongue... no need to swallow...
I think the guys in the second clip shows a nice way you can do it... out in the dark next to a fire, sit down and chew your leaves...
Interesting the leaves are always used in even numbers signifying male and female...
This one is a longer bit (more parts) with 2 guys underoing salvia testing as part of experiments....
http://www.youtube.com/watch?v=wt0UyQR3NvA