and it worked! Mainly thanks to Thomas who supported me at Euston yesterday and works in an office overlooking St Pancreas Sq. He brought a wonderful bunch of co-workers along and we did an intro to Mambalsa session. We were joined by a man who worked on the building site, which shows how the group can grow.
The equipment worked fine after I switched to flight mode and the sun shone.
Most importantly, many people stopped and watched and took note as we had fun. Fingers crossed for next week :-)