Families, particularly, tend to be the ones that you take the most for granted. They seem to slip under the radar, all those important things - it almost becomes second nature to do so.
You make a decision whether you just work on the script and believe in every moment and pick out every moment, or if you sit down and memorize lines. Once you really dig into a script, learning lines becomes almost second nature.
I'm so comfortable on my snowboard that I don't have to think about it very much; it's somewhat second nature.
Community involvement is second nature to me. I've been doing it since high school.
I like figuring out where I need to be mentally so that I'm not thinking about the camera and that it's second nature. I want to get to a place where I can exist within the confines of what you can do with filmmaking and not have to think about it.
When I think about the books I've written, it probably takes 150,000-200,000 words to get a 50,000 page book. Highlighting something and hitting Cmd-X is second nature.
Training before work, or during your lunch break, or before dinner really does become second nature after a while - and most people even end up enjoying it.
I'm around my father all of the time, so the things that people see as distracting are things I've seen for years on a daily basis. It's second nature to me.