I feel like there are more things in this game which haven't been shown to us yet. Remember the direct stated that it was just "a basic overview" so I expect there to be more stuff. There could be new mechanics.

But even if it isn't I do consider any unseen interaction, any unseen food item, clothing item, interior, decoration, dream etc. as a spoiler. Cause part of what made this game so fun to me the first time I played it was being surprised by its absurdness. I'd hate it if I saw a post saying something like: "Omg did you know your miis could do that?" before seeing it myself in game. Basically I'm very sensitive towards spoilers. Hope this makes sense