Reclaim this vocabulary: focus.

I have yet to meet anyone whose eyes didn't glaze over when I shared a look through my collection. And then one friend, no more interested in my subject that any one else, listened to my embarrassed and short description of "what I'd been up to lately" (collecting) and exclaimed with delight: "See what happens when you focus!" She shared my pleasure in my little obsession without sharing my interest. What a joy to know friends like her.