Possible Clues:

• Unfolding US magazine when boozer kicks off?
• When perhaps to start local business opportunity with magazine
• When pubs start serving
• When admitting to drink problem initially I mention eg shakes
• First orders?
• How long it takes to remove lid, maybe, when a jar becomes available?
• When to buy a drink for bird by window?
• Starting to read US magazine when locals start business
• Starting to read US publication when draughts become available
• When pubs start to serve