Anyone going ? If so, take no chance; wear a suit a try to blend in,,,and audio record everything.
Absolutely! Dress like lefty the salesman:

in preparation, watch this vid in which he shows his skill selling invisible things.
https://www.youtube.com/watch?v=N5cZW65ZG_0goes something like this:
"hey youuuuu!
"who? me?"
"yesss, youuuuu! How would you like to buy this invisible bitcoin?"
"an INVISIBLE BITCOIN ?!?"
"ssshhhh!" [look around checking if anybody heard it]
"yessss. invisible! bitcoin!"