He's probably honking the horn at the pedestrians and not you. Most pedestrians seem to ignore the "Don't Walk" indicator which is there for a purpose. On said purpose is to allow people who need to turn right or Left the opportunity to do so. Most pedestrians are so ignorant that they don't care. Sometimes I wish cops would hang around and ticket these morons a few times and that would help raise awareness that vehicles need time to perform such maneuvers.