I, personally think, (& don't quote me on this, cause I'm honestly not 100% sure), but I don't believe she has a real one. I think there was some magazine article that came out not too lon ago, where she laughed & said she was behind the ball because she doesn't twitter.. but again, I could be wrong. I'm going to try 'n find the article to make sure I'm not just imagining things for you.. lol!
.. But I think that Jamie has a real one though, doesn't he..?? :-/
No. None of the Jennifer Love Hewitt account are verified and plus Jamie Kennedy (her boyfriend & co-star) isn't following her and doubt that if she had a twitter account he wouldn't follow her.
Jennifer Love Hewitt is on twitter @TheReal_Jlh, it's official and it's on his official website and now she's on facebook : look for the real link for follow her on her page