The ‘Her’ star told ‘The Tonight Show’ host Jay Leno that the worst thing in the world is to congratulate a non-pregnant woman on her pregnancy, and people will go to great lengths to not mention it, Us Magazine reported.

The 29-year-old actress added that unless someone’s watching you give birth, they don’t want to make the wrong call.

Olivia Wilde
Olivia Wilde. Pic/Santa Banta