1st Timer so this may be discussed elsewhere, but I didn't find it with a search.
The 1st page of the tutorial says "...get this over with as quickly as possible." then has a (Hit Enter to Advance). --> Hitting the Enter Key does nothing. I assume that the frame didn't have the focus or something. I had to click it to advance.
Further in the text says something to the effect that a blue glow will appear around objects you can interact with and that the Sammich will have this glow. It drops from the top, but no blue glow. The text then goes on to state that it's usually much easier to hit Enter to interact with objects, but hitting enter does nothing. You have to click on the Sammich.
HTH