Enormously pleased you're enjoying yourself!! (Did you happen to go find the prologue for "A First Test," by the way?)
Not per se; alcohol never really caught on with the Denobulans. He does, however, talk a lot, and he finds himself with a dry mouth on occasion. It also gives him a chance to collect his thoughts in the middle of one of his rambling diatribes....Does Treyva have a drinking problem, though? He is often having to pause to drink water during his speeches. Seriously though, fantastic stuff, and it's really fun to read through!
That's my story, anyway, and I'm sticking to it.