“You never know just how you look through other peoples’ eyes” – this is a line from a well known song when I was growing up (Pepper by the Butthole Surfers for those interested). There is definitely a lot of truth to this. That said, there are some things that, if you do them, are guaranteed to piss people off.
Now just to be clear here, the following are things I recommend you don’t do. And one more thing: I’m certainly not perfect, and there are a few things on this list that I’m guilty of doing. If anything, writing this list has helped me identify some areas I can work on.