Forget "mobile first." Try designing for interruption instead.http://solveforinteresting.com/design-for-interruption/
Mobile devices aren’t consumption devices, they’re prosthetic brains. And that means they need to tell us when they have useful information (interruption); and answer our questions (contextual search).
Saying “mobile first” is wrong. Too often, that just means “make this web page work on a tablet.” Just as web designers who simply took offline documents and rendered them in HTML missed the point of the Web, so mobile designers that simply make the web work on a phone miss the point of mobility.
Mobile isn’t the point. Interruption is. Stop worrying about taps, screens, or swipes. And start worrying about how to interrupt your users well.