I have thought of this since my last post and the best advice I can come up with is don’t let him make or see you cry, when he is outside staring at you he wants you to see him don’t wave don’t look just do what you are planning to do. Once he thinks you are not intimidated or interested in what he has to say he will seek his attention from you by being nice, most likely he is lonely in a strange place and thinks being a donkeys backside will get him attention so do not re-enforce the bad behavior only re-enforce the good behavior.