If you aren't overly effusive or really nicey-nice with the press, you get a reputation for being outspoken or difficult.
Janeane GarofaloI was thrilled to work opposite Carl Reiner and Robert De Niro. Mr. Reiner was very chatty and delightful, but I learned that if you want Robert De Niro to like you, don't speak at all, and he'll be friendly to you.
Janeane Garofalo