Article: Bartenders are generally very vigilant about what is happening around their bar, so they will glance your way eventually. Look their way and wait for them to look back at you. Make eye contact and nod or wave to signal that you'd like to order. It will be very difficult for a bartender to see you if you stand behind seated customers at the bar, or behind the beer taps. Position yourself at an empty part of the bar where nothing will prevent the bartender from seeing you. If the bar is too crowded, wait until a spot clears and stand there once it is free. Depending on how busy things are, your server may be very rushed when you place your order. Always wait for your turn and speak respectfully. Being courteous will earn your server's appreciation and may result in better service. If the bar is very crowded, avoid making the bartender wait while you decide what to order. Know what you want before approaching the bar. If you are uncertain, glance at the beer taps or drink menu to choose your beer in advance. Bartenders are liable if they serve alcohol to minors, so it is not unlikely that they will ask to see ID to make sure that you're of legal drinking age. Always have a valid piece of identification with you when you order beer. A driver's license or passport are the best options. If you are in a country or region where tipping is custom, tip your server at least $1 no matter how much your beer costs. If you run a tab and pay for several beers at once, tip at least $1 for every beer you ordered. If you received exceptional service, it is welcome and appreciated to tip your server more.  A good tip for exceptional service might be $5 for a $15 bill. Note that tipping is not a traditional practice in some places, like Australia.
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Make eye contact with the bartender and nod or wave. Stand in a clear spot in front of the bar to be seen. Be patient and polite when ordering. Decide what you want quickly if the bar is crowded. Present your ID if your server asks for it. Tip your server no less than $1 per beer, if applicable.