What do you say when you see someone?

Lately in therapy Izzy has been working on ordinary things that make her anxious and therefore shut down.  Today, we were talking about what you do when you see someone (say hi!) or are leaving (bye bye!).  Typically when we see someone, she shuts down and looks down at the floor and won't interact with them, even when it is someone she knows well.  So we practiced waving and saying hi or bye.  And then her therapist took her for a walk through the office and they practiced saying hi to people and then bye on the way back to the room :)  When we left to go home, she even spoke to people in the elevator, which is a really big deal for her.  It was a good session!