It's difficult to look like a tourist when you don't speak the language which is my case ;) But nowadays I don't even bother.. 2 years ago we went to Rome and there were those guys giving roses to women. He pushed the rose in my hand and I couldn't do much so I took it.. then I walked away. He was following me and asking for money. I tried to explain to him that he gave it to me and that he can PLEASE have it back but he wouldn't take it. At the end I told him, fine, if you don't take it I just leave it here and put the rose on the ground. He was pissed off and was screaming some nasty Italian words to me but I just walked away.. They are so annoying and it can happen anywhere..