first thing. >> i think i do that a lot. last week abc news tech contributor daniel sieberg, he released this book and it's called "digital diet" and it's for people like me, apparent ly. >> it is. and the ipad. what better person to go out and bust people who are using gadgets in all the wrong places? dan harris reports. >> reporter: everywhere you look, you see it, fingers stuck on keyboards, phones seemingly glued to ears, walking while typing and then falling. face it, we are addicted to our technology, even using our gadgets in places where we really shouldn't. so we sent out our tech contributor daniel sieberg out to bust people. >> we're here at the hard rock cafe. we're seeing people who are more preoccupied with their devices. let's go have a look. >> reporter: at one of the first tables, daniel spots four young adults,