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Hayden is very active in causes she believes in. Some of those causes I also support and some I don't. I like the fact that she's passionate about stuff without being obnoxious about it, even if I disagree with her. At least she's much less obnoxious than some other folks in Hollywood.
Interesting fact: She has a tattoo on her side that reads Vivere senza rimipianti , which would translate into English as Live Without Regrets. I say would translate, because one of the words is spelled wrong.