Disco twaddle

After dancing near me for a couple of minutes:
X: What about a pint?
A: I don't drink, I'm driving.
He looks at me in a very strange way and probably wonders now who the hell drives to a disco.
X: What about Pepsi then?
A: I don't like Pepsi.
I was actually waiting for him, smiling, to ask me the following questions:
What about Coca-cola then?
What about mineral water?
What about orange juice?
What about pineapple juice?
What about banana juice with blackcurrant juice?
What about banana juice with blackcurrant juice and pineapple juice?
Instead, though, with a shrug of resignation, he turns away and disappears in the crowd. 
Nice. This time, I didn't even have to talk in Portuguese to an unwanted guy to make him go away from me.