How do you use a standard cash register at a bar--what do you push to make a beer purchase excetra?!

Question: How do you use a standard cash register at a bar--what do you push to make a beer purchase excetra!?

also how do you use the touch screen registers!.!.!.
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Answers:

No such thing as a standard cash register!. Only really busy bars would have an idiot proof system like that, most of them require their bartenders to have basic math skills!.Www@FoodAQ@Com

they're all different!Www@FoodAQ@Com

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How do you use a standard cash register at a bar--what do you push to make a beer purchase excetra?!

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