I’ve only done coca leaves once, I don’t remember the amount but I’d say enough so that it looks like you have something in your cheek, kind of like a rodent. Of course this is not the same as cocaine, you won’t feel the same amount of high. I’d say not even if you rub coke on your mouth will feel the same as ingested nasally, and this I’ve done a lot of times, it’s nice, but not the same.