I made the jacket blacker than what it would be with a normal B&W conversion. The point, to create black shapes, and in contrast, to make white shapes out of the sky. None of this in-between gray business, in these areas (jacket and sky) where detail is not necessary. By blocking out these areas, I think viewers spend more time on the faces. And then, the subtle Golden Gate Bridge detail is almost an afterthought.
It seems that often people convert photos to B&W for fun. Or for a retro effect. OK, there's nothing wrong with doing that, but for me, turning a pic into B&W is a whole different interpretation of the photo. Color is a huge distraction and by removing it, the details - the shapes, the lines, the contrast - are suddenly gain importance. It can be used to give subjects so much more impact. So my message is this. The next time you're going through a set of photos, don't just convert to B&W willy-nilly, to attempt to add variety, or appear artsy. Convert to B&W because you want your photo to convey a different message.