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Yes,

It's a way of talking to a person without initially using a command or some other request with inherent obligation or further action implied. It takes some pressure off the person being asked, to make a an initial committment. 

What are you drinking? vs. Let me buy you a drink.

Similar to this:

Are you a good dancer? vs. Dance with me.

Similar to this:

Are you having another drink? vs. We should have another drink.

This way the asker can assess the interaction and make a nice offer or become disinterested without having made an obligation already. This takes some of the pressure off the person asking the question.

However the goal is typically to buy them a drink, not so much to offer them but to just imply that you will be doing it without the other person's expressed acceptance.

It's a way of talking to a person without initially using a command or some other request with inherent obligation or further action implied. It takes some pressure off the person being asked, to make a an initial committment.

What are you drinking? vs. Let me buy you a drink.

Similar to this:

Are you a good dancer? vs. Dance with me.

Similar to this:

Are you having another drink? vs. We should have another drink.

This way the asker can assess the interaction and make a nice offer or become disinterested without having made an obligation already. This takes some of the pressure off the person asking the question.

Yes,

It's a way of talking to a person without initially using a command or some other request with inherent obligation or further action implied. It takes some pressure off the person being asked, to make a an initial committment. 

What are you drinking? vs. Let me buy you a drink.

Similar to this:

Are you a good dancer? vs. Dance with me.

Similar to this:

Are you having another drink? vs. We should have another drink.

This way the asker can assess the interaction and make a nice offer or become disinterested without having made an obligation already. This takes some of the pressure off the person asking the question.

However the goal is typically to buy them a drink, not so much to offer them but to just imply that you will be doing it without the other person's expressed acceptance.

1
source | link

It's a way of talking to a person without initially using a command or some other request with inherent obligation or further action implied. It takes some pressure off the person being asked, to make a an initial committment.

What are you drinking? vs. Let me buy you a drink.

Similar to this:

Are you a good dancer? vs. Dance with me.

Similar to this:

Are you having another drink? vs. We should have another drink.

This way the asker can assess the interaction and make a nice offer or become disinterested without having made an obligation already. This takes some of the pressure off the person asking the question.