I never thought that my work was going to become well-known. It started happening slowly, without my realizing it. But when I did, it was terrifying. I still can't believe that people let me photograph them. The trust is amazing. But I've always put them in a context that is dignified, and that's really important.

Can you see the deaths, divorces, job losses or changes, disappointments, surprises, and successes on people's faces? Have they been happy, sad, disillusioned, or gratified? I have been trying the single, vertically shot portrait with my 8 x 10 since 1985 and never felt I succeeded in finding what I was looking for.

People aren't really looking at the result when taking a picture on an iPhone. And they don't print it. So to me, it's almost not a photograph. It's like looking in the mirror. It's a tool I don't relate to at all.

I usually know when I take the picture. There's always some kind of un-self-conscious thing going on, so that it doesn't look like they're there for the sake of having their portrait taken.

I think people imitate actors - things they've seen in a movie or on TV, and before you know it, they're doing something with their face or their mouth. It's from some actor they think is cool. They might not even know they're doing it, which is kind of funny.

Shooting great-grandchildren of some of the people I had photographed in the past, who are around the age of 15, is fascinating to me, because they're right on this fine line between still being children and starting to become themselves.

I'm at the point now where I don't really have an agenda. I kind of let things flow, and there's not a narrative. On the set it's usually one or two people, and I'm not trying to choreograph them as I did in the past. I'm really just trying to see what's going on in their minds and in their faces.