Make Liquid Smoke In a Glass (Best Bar Trick EVER)
You will need: an unfiltered hand-rolled cigarette and a cold glass.
From YouTuber noncents:
"Don't inhale the smoke just pull it into your cheeks and let it fall out your mouth along the inside of the tilted glass. Do not breath as you do this or it will blow it all away! Practice makes perfect … btw too much practice also causes oral cancer."