What are people working on in coffee shops?
medium.com
medium.com
Of course the people sending out invoices aren't having conversations! But still, almost surely there'd be a different distribution. More science, less film.
When I lived in Brooklyn, as gentrification rolled down from Park Slope, it became difficult to find a cafe that wasn't overrun by mommy gangs.
I have a metric now for interactions with strangers in San Francisco: Time to App. It's like Time to Crate in games, but here you time how long an otherwise interesting conversation turns to someone talking about their app.
And many of us would just look at you with a "wtf are you talking to strangers for?" expression.
The other side of this, however, is that if I need to work somewhere and I don't have an office, where can I go? 2 people cannot comfortably work in my dinky condo (I can barely live in it...) and I don't want to pay $100+ for a co-working space. Compared to a $2.50 coffee, that's insane!
University libraries can also be good, but be mindful of the date. If it's exam season I tend to avoid them simply because students should have priority to the libraries they are paying for.
I'd like to see someone open a cafe that has a communal-only seating policy, perhaps even you are assigned to a seat in one of the communal seating areas, no laptops. The cafe promotes active engagement and conversation amongst people who do not know each other. A return to the original purpose of the London coffee house -- a place to debate[1].
There are plenty of coffee shops where people are buried into their laptops already, but as this article demonstrates, some people really do want to talk to people they don't know, but they find it tough to get out of their comfort zone. If there's a space where this is encouraged and promoted, I think many would welcome it.
[1] http://www.telegraph.co.uk/travel/destinations/europe/united...
And no, I won't tell Hacker News where it is. ;)