You sometimes like to have a drink in a bar after work or on vacation To relax yourself ?
So you know it's always risky to go to the bathroom or go outside to smoke.
Your drink may be taken away by the bartender and your seat may be taken by someone else when you return.
Fortunately, there is a trick to indicate that you are coming back. Just place your round of beer on the glass:
1. Grab a coaster.
2. Put it on the glass.
There you go, you can leave quietly :-)
Why ? Because it's the universal language to say "I'm coming back".
No more having your drink taken and your place taken!
You can go to the bathroom in peace :-)
