So, I take my ceremonial drink from the sap of the tree, and am obviously 'under the influence', but....nothing happens. The scene doesn't freeze, it's just that nothing else happens. So I start the scene again (and again) - maybe I wasn't holding my mouth right (?), but still, nothing else happens. Is there a trick to this one that I'm missing?

Should be a delay, then your vision gets a little hazy, then you wake up in another part of Oasis. Reload a save?

Or delete the game content and re-install it?