12 Tips on Proper Bar Etiquette

And I agree:

Always tip in cash — otherwise the server may never get it, or if they do, they’ll get it a week later after the credit card is processed.

Gavin McInnes writes:

As you sit there poring over the menu like any of this matters, we are fantasizing about ripping your head off. You don’t go to a drug den and order strawberry heroin, so stop asking questions about some stupid pumpkin ale.