Our descriptions of ourselves change according to who we are relating the information to, and when and where we are doing it. Professor Nick Chater, in his book The Mind is Flat, says we don’t have fixed bodies of knowledge in our brains, he says it is fluid, and that we literally reinvent everything, at every recollection. In this way, my description of myself comes from a small set of memories that are uniquely reinterpreted each time I recall them. If I am asked about myself at an interview I’ll give one description, using memories that I think are appropriate for that role. Do that same interview on a different day and my description will be different again. If I’m going on a date, I’ll use another set of memories, altering them from date to date, depending on the person I’m dating. Each scenario makes us alter our personalities slightly when we are around different people, or we are in different situations. Your partner knows one version of you, your boss another, your friends another. There isn’t a single fixed version of you, you are literally making multiple versions of yourself up as you go along.