The story seems quite interesting; I'm playing the Brazilian Portuguese version. (I don't know if that makes any difference with the game's controls.) For some reason, the confirmation key, Z, is simply hindering gameplay. I can't get past the first turn because, even clicking the correct key and trying every possible way, the game doesn't recognize it. Customers complain about the delay, and I fail, not because of my slowness, but because it simply doesn't work. I've tried several ways, but nothing helps. I really wanted to play and delve into the story, but with this problem, it's impossible :(
When trying to interact with objects, you need to press the arrow in the direction the object is from Rody, while pressing z.
I experienced the same problem, and thought it was really inconvenient until I realized there is a bunch of objects around to interact with in his apartment, and the arrow really helps to specify wich you're trying to get a reaction out of< it became a really likeable feature for me, hope this helps! :D