French, the language of romance, is second only to English in globally spoken languages. Learn how to speak French to express you in all walks of life. Be it personal or professional French will definitely give you that edge over the competition globally.
French-speaking people have made incursions upon the British Isles many times in the past, most noticeably in the Norman Invasion of 1066. For this reason, although English is a Germanic language at least a third of the English lexicon is derived from French.