Public footpath, you can stand anywhere you like. Inside a shop you are there at the manager's discretion, so ask once at the start and you will almost never be asked again. Say you are a student counting how long the line takes and that you are not recording anybody. That sentence has never failed.
Nell AbioyeWeek 1, 25 Feb 2027
Asked on Wednesday. She offered me a chair.
Tomas RehakWeek 2, 1 Mar 2027
Worth adding that the chair is a trap. Sitting down you lose sight of the back of the line, and the back of the line is where arrivals happen.