In nyc bikers always welcome visitors with welcoming words when they are standing in the middle of the bike lane. I wont' even write it, use your imagination. The european tourists know better they are used to people biking in their crowded cities, and if they get caught in front of biker they are truely embarassed, because they know they should know better. But the most american tourons just freeze and stare with a look of pure fright and confusion. On the other hand, native nyc'ers are often very kind and helpfull to tourists in need. Just adapt.. quick.