
"Hiya, I see you're enjoying a beer, great to see that you're drinking something that Britain is famous for. There's been a lot of breweries opening in recent years; with all manner of interesting beery flavours. Here try this...*tosses can of Brewdog punk IPA*. You can pick these up pretty cheaply in the supermarket its a good reflection of what is good in UK brewing at the moment and you're supporting a British company whereas a lot of other widely available beers are owned overseas. Plus the beer is unpasteurised which means the flavour is fresher. Besides the cans are smaller so can fit in your fridge more easily and you can pretend its a soft drink so get away with drinking it in places where beer isn't allowed*"
Person leaves lift pleased to have received free alcohol.
I believe the best way to convince people to think about new beer is to get them to try it, no amount of talking is going to persuade them. If you offer them a free sample then they don't even have to part with their money.
*Busses for instance..ahem