Bar queuing is no easy task.
From being elbow to elbow with strangers, trying to make eye contact with the bar worker, trying not to lose your place as people push and shove.
We all struggle with it.
People have tried tactically planned their queuing, trying "tricks" to be served first or even sneakily skipping just to be served first.
A company called DataSparQ is hoping to ease the woes of bar etiquette by creating a smart bar.
The newly developed software is currently being used at 5cc Harrild & Sons cocktail bar in London.
Using facial recognition it ensures customers who were queuing first get served first.
Bar workers will see numbers above each person, so they know who has been there the longest.
It will also tell you where you are in the queue and approximately how much time you have to wait.
Artificial intelligence is also able to help with ID checks as it study's people faces.
It scans hundreds of bio-metric data points to analyse if a person is under 25.
Check out the video below to see exactly how it works.