Details for the 2018 LaughBirmingham Laughter Flashmob have not yet been arranged but here’s photo from this year (2017):

The 2017 National Laughter Week takes place from 4 to 11 June 2017 with LaughEngland Day taking place on Monday, 5 June 2017.

There will be a series of Laughter Flashmobs taking place at Victoria Square, Birmingham City Centre at the bottom of the square, below the steps where it is joined by New Street.  These will take place over the lunchtime period from 12.00 noon with the last one finishing by 2.00 pm.

See the poster here  (not yet released)

The full 2017 National Laughter Week included:

Laugh Scotland – 4 June
LaughEngland – 5 June
Laugh Wales – 6 June
Laugh Northern Ireland – 7 June
Laughter Conference – 9 June
Laughter Festival – 10 & 11 June

For information about the Laughter Festival see: http://www.laughterfestival.org.uk and
http://eventful.com/events/laughter-festival-2018-/E0-001-103264828-9