I've tried more ways than you can imagine to end my keynotes. It is always good to try, fail, learn, optimize.
I've always hated the first one (when I've been in the audience, hence I've never done it). I'll say something like... "and now it's your turn to critique what I've said, challenge me, or give me a great example!"
Another one, not below, that is quite depressing is to ask people to raise their hands. As in... "raise your hands if you've had a kale burger in the last 24 hours". No one likes raising hands! Stop it already.
You would be surprised how often the Lululemon bag one works: https://instagram.com/p/zif-Mku1yV/
I've never tried the last two (confetti, cloud of smoke). If you have, would you please share if it is really as awesome as implied?#storytelling #changingminds #influence