If its your best friend, everything they say is going to be positive and great.
If its someone you have a bias against you will assume the worst.
One time I responded to a text with the letter 'Y' to answer "yes" to a question. The person thought I was being a dick asking 'Y' they read it as "why"...
The other day someone thought I was starting a conspiracy when I actually wrote that "such and such will look like a conspiracy"...