I love this trick,... I do it a different way but I do not have a video of it,...
I like to do it sitting at a table across from my victim,
I use a half a glas of beer and a fork,... (any liquid or item will work)
You can do a few moves as in this video,.... Place the items in front of you on the table and move the fork over the glass and let them do it, then move the glass over the fork,... and so on, just make them do a few moves then drink the beer (but don't swallow) and do one more move after that,.. then if you have soemone you can trust won't kick your butt, blow the beer all over their face,... this is best done out by the pool, or when camping by a river or a situation like that,... if you're in a bar or restaurant you might just want to spit it back into the glass,... be sure to use a very dramatic pause after the the last move and before you spew.
heyscuba
This is exactly why you are the unsurpassed master of all bar tricks. Always able to add value.