I've been learning this lesson the hard way recently, so wanted to share it with you.
'Mind reading' is quite a common problem for people with anxiety. You've probably experienced it at some point: something happens with someone you know, and once it's over, you start to over-analyse what happened, your mind embellishes and before you know it, you've decided that the person hates you and thinks you're really rude.
Of course, it later turns out that the person didn't feel like that at all. You just decided to read their mind, and got it completely wrong! This has happened a lot to me recently, and I wanted to share what I've learnt to do: talk to them! Don't assume you know what they're thinking until they tell you! I know it's not easy and sometimes seems a bit scary, but asking someone how they feel rather than guessing can stop you from ruminating for days or weeks and driving yourself mad - it's certainly helping me!
R