Ordering drinks on an airplane?

The flight attend. will advise - normally they will take the destination and departure country currency to pay for anything on the flight. If you must pay, you are offered the drink, and then you fork over the dosh.

For wine, they normally offer the small bottle with a cup. If you have a beer, they give you the beer w/ or without cup. All alcoholic stuff, is poured in a cup with ice and your choice of mix.

Well generally (but you should ask) on international flights from major airports, the planes will accept many various kinds of currency (albeit at a bad rate for you) generally in my experience they just use a calculator or some other device and give you your change right their, or they will have a shop somewhere on the plane where you can order various sized bottles (that should answer the third question aswell)

U r ganna order it to drink??????I ve in no way heard they cost U ..I ve in no way paid funds for my drink on air airplane..!!and particular U can order the bottle yet no longer those massive one purely like a modern-day(pattern)one..

if its an international flight the drink should be free .no drinks by the glass only except beer you may get the can

Call your airlines and ask them. My past experience has been that the booze is free (but they can limit or refuse to serve you if you appear drunk) and that all the booze is packaged in single serve bottles.