What you would do if one of your little sister's sixteen year old-still has braces friends saw you in a bar and said "well, are you going to buy me a drink now?" (or substitute any other person who is obviously lower perceived statusvalue than you, e.g. gay man if you're straight, fat/ugly/dumb/smelly person, anyone who you basically see as unworthy of you).
Take that, add some mocking humor/banter, and there's your response.
This seems very odd to me. You seem to be suggesting that this is the typical way a socially successful NT responds to being asked for a drink, and that just seems truly, bizarrely wrong to me. Where did you learn this? Is it a PUA thing? I'm not necessarily saying it wouldn't work - it might, in the same way that weird PUA crap like "peacocking" might work, but it definitely isn't normal behavior, even for NTs
Followup to: Do you have High-Functioning Asperger's Syndrome?
LW reader Madbadger uses the metaphor of a GPU and a CPU in a desktop system to think about people with Asperger's Syndrome: general intelligence is like a CPU, being universal but only mediocre at any particular task, whereas the "social coprocessor" brainware in a Neurotypical brain is like a GPU: highly specialized but great at what it does. Neurotypical people are like computers with measly Pentium IV processors, but expensive Radeon HD 4890 GPUs. A High-functioning AS person is an Intel Core i7 Extreme Edition - with on-board graphics!
This analogy also covers the spectrum view of social/empathic abilities, you can think about having a weaker social coprocessor than average if you have some of the tendencies of AS but not others. You can even think of your score on the AQ Test as being like the Tom's Hardware Rating of your Coprocessor. (Lower numbers are better!).
If you lack that powerful social coprocessor, what can you do? Well, you'll have to run your social interactions "in software", i.e. explicitly reason through the complex human social game that most people play without ever really understanding. There are several tricks that a High-functioning AS person can use in this situation: