Most people give themselves the benefit of the doubt. Try giving it to the other person first.

You have full access to your own reasons and none to anybody else’s, so your mistakes come with context attached and theirs arrive bare. That difference is why the same action looks forgivable in you and deliberate in them. Nothing about it is dishonest. It is just the view from inside one head.

When somebody does something that annoys you this week, invent one innocent explanation before you settle on the unkind one. Tired, busy, did not see it, having a worse day than you. You are not deciding they are innocent, only holding the question open long enough to find out.