Public phone personality swap?

Jellies, do you talk differently on your/the phone when you are in public? I do not mean merely trying to avoid details so that people around you cannot eavesdrop, but does your phone personality seem to change as well? For instance I noticed I tend to be more judgemental, self-confident, and pig-headed when talking on the phone in a public place. I keep my voice at a normal level, but still I tend to use swifter judgement, use somewhat more ‘powerful’ vocab and go into self-righteous mode, sticking to my guns longer and harder then I would have otherwise. Is it normal? Narcissistic? Do you know what I am talking about, or does this sound totally alien to you?