Go greet someone. How should you do it? Without being servile or pathetic. But what if they shut you out? Well, you haven't learned to climb through windows. When you find the door closed, you either go back or find another way in. But still talk to them. How? Without groveling. But what if you don't get what you wanted from them? That was their choice to make, not yours. So why are you demanding something that belongs to someone else? Always remember what's yours and what belongs to others. Then you won't get upset.
Go and salute a certain person. How? Not meanly. But I have been shut out, for I have not learned to make my way through the window; and when I have found the door shut, I must either come back or enter through the window. But still speak to him. In what way? Not meanly. But suppose that you have not got what you wanted. Was this your business, and not his? Why then do you claim that which belongs to another? Always remember what is your own, and what belongs to another; and you will not be disturbed.