Why would I want to do that? I'm not from the Anglophone world. Taking your comment into consideration, I have opted for spaces, which seems to be the international standard since 2003 :)
Okay, but this is the English version of JetPunk; in my English quizzes I always use separating commas, but in my German quizzes I use separating full stops.
Let's hope no one reads the comments before taking the quiz...