The 37-year-old star, who has 16-month-old son Rocco with her partner Bobby Cannavale, may have joined Instagram but admits social media was never her thing, reported Femalefirst.
"I'm too shy, but I enjoy it! I never did Facebook, or any of the precursors to that. Instagram was my first foray into social media. It's nice to see people, friends, doing their thing. Bobby really likes Twitter.
"Healthy aggression is good, but I think social media can perpetuate that in the worst way. You have to be careful about comparing yourself to others. You can never be somebody else. You will only be yourself, and that's what's great," she told InStyle magazine.