This from 21st Century Vision
who describes London at 12 expressing the same sentiment as we did at 18 in Trafalgar Square:
"Locally in the London Boroughs of Enfield & Barnet many people left their workplace and stood silent on the street. We visited the Palmers Green Bookshop and joined them as they shut their doors and stood silent outside. Others came out of their shops and joined together in this act of remembrance. It was an emotional moment that made us all realise that underneath the diversity of this great city, London was at one."