Stage a flash mob

If I don't have special costumes or a separate timer, what can I use instead?

Use matching brightly colored T‑shirts or bandanas from home as simple coordinated costumes and use a smartphone's stopwatch or timer during the step 'Practice the choreography with the music and a timer' and the 'full dress rehearsal'.

What should we do if people keep missing their steps or the timing is off during practice?

Mark each person's starting position on the floor with tape, assign clear roles as in 'Assign each person a clear role and starting position', and rehearse slowly with counts from the step 'Practice the choreography slowly with counts' until everyone hits the timing with the music and timer.

How can we change the activity for younger kids or older teens?

For younger kids cut the song segment shorter, simplify moves from 'Create a simple choreography of easy repeatable moves', and keep the adult supervisor closer, while older teens can learn longer 60–90 second segments, add more formations, and let teens handle contacting the venue manager as in the instructions.

How can we make our flash mob more special or shareable after we perform?

Personalize the routine by adding a signature move or simple props from 'Choose simple coordinated costumes or props', film the 'full dress rehearsal' and final performance, edit the clip to the chosen song segment, and then upload it to DIY.org as suggested in the instructions.