I have done studio and portrait photography for years and would like to focus more on stock photography, especially in light of managing my own time and being able to travel more. However, when in a studio, I'm confident and in control. While out there, trying to take random and candid pictures of, for instance, by-passers. I get shy and self-conscious. The other day, I saw many opportunities in a park (people enjoying the last summer sun, youngsters in love, a student under a tree reading a book, ...). I hardly took any pictures (even though I had my 70-200 2.8L with me so I could keep a distance) as I did not want to be considered a "weirdo" ... This may be more a topic for a psychologist, actually but I was wondering how you deal with this. Do you ensure that people know that you are professional photographer? Do you hand out business cards? Do you wear a nametag/label to identify yourself? Do you stay under the radar and take pictures in a more hidden way?