Jet Bin Fever I love Kava. You can actually buy it legally in the states from a place online. Pretty pricey though.
Corpus Delectable I wouldn't mind trying it, then. Well, with less of other people's spit, that is.
Oscar Wildcat Polynesian custom often has the young ladies do the honors.
fractured It's has a pretty mild effect. You can buy it legally in person at most places that would have it.
Jet Bin Fever You generally make it by grinding up the root (or just adding the powder) and mixing it with water. It's sometimes pretty bitter, but you can chase it by chewing on coconut.
So yeah, no need to swap spit.