giberson said: """-When walking leaving my office and entering the hallway, how close should a person be entering the hallway from the opposite direction be before I wave or say hello. If I wait to long, they think I ignore them. If I do it to early, then theres a great length of time that we are both still walking down the hall and having used my throw-away "Hey" I have nothing left to offer them. It's awkward."""

1) I would recommend playing music. Playing music of any kind can allow you to become a better listener and help with timing your response or initial request/comment/gesture.

2) Be sincere; be empathetic.

3) Have fun.