We think we are noticed/thought about by others way more than we actually are.
Belief that we know other people better than the other person knows us.
A belief that good/bad things happen to us because of external influences rather than personal actions.
We think other people can understand our mental state fairly accurately.
We think other people are driven more by extrinsic motivators(like monetary reward) and we are driven more by intrinsic motivators(learning a new skill).
When communicating with others, we assume that they have all the background information about the topic that we have already.
Individuals are less likely to offer help to a victim when there are other people present.