Show people a meaningless shape and ask them to name it: the spiky one gets 'kiki', the round one gets 'bouba', all over the world, in every language. There's a hidden universal bridge between sounds and shapes. Are words purely arbitrary, or do sounds have a taste and a shape of their own?

— the bouba/kiki effect, sound symbolism (Kohler, Ramachandran)

Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.