Each impression you make will- temporarily, at least- be your last.
I would like to highlight this words, ‘I care about what people think of me when I enter a room, I don’t care what they think when I leave’…
The rule of first impression is reflected in dozen of ways. Consider apologies and forgiveness, for example, the last impressions a person makes, by apologizing, often obscures the person’s memory of the event that led to apology.