Always in the background

I have become too comfortable with being in the background, a real life NPC (non player characters in games), going about my business, sticking to an internal script rehearsed over a lifetime (do not put myself in potential trouble, don't say or do anything to embarrass myself and trust no one) and moving on to the next task.

And when someone interesting catches my eye I glance at them without them knowing and move on with my business.

Eventually I feel as hollow and devoid of personality as the background characters in movies or games.