I used to hum to myself as a young kid even at school, whenever drawing etc, I would sit humming away. I didn't realise I was doing it. None of my classmates ever said anything. I am talking about when I was 11! One day the teacher told me to quit but I subconsciously did it again, got a rollicking!
I occasionally whistle to myself, not at work, its weird, as I cant actually think back to when I do, but I know I will whistle away sometimes!
I occasionally whistle to myself, not at work, its weird, as I cant actually think back to when I do, but I know I will whistle away sometimes!