Today after lunch at Luziazui (陆家嘴) financial district I helped a European tourist couple take a picture of them in front of the Oriental Pearl TV Tower (东方明珠). They then asked me how to get to the metro station, which is a common questions that I have answered many times even from Chinese tourists. After giving them a detail set of directions, one of them asked me: "Are you Chinese?" Instinctively I answered "Yes".
She commented "Your English is very good!" I smiled and wave goodbye to them, did my bit for Shanghai Tourist Relation today.