So I think that in today's world to be a successful business person, successful manager, successful executive you have to be bilingual, trilingual, quadrilingual.
For example, illustrations called Bianque Healing Diseases from a trilingual version of a children's picture book showed men and women were rarely dressed, with ambiguous facial expressions and postures.
This sounds crazy, but I guarantee you that it's one of the ways that you know, if you are coming actually bilingual (means you can speak two languages) or trilingual.