After Arabic, French is the most popular second language.
English is widely spoken in business circles and is
certainly popular with the youth, who are attuned to the
American culture. Two of Lebanon's major universities, the
American University of Beirut and the Lebanese-American
University, conduct their courses in English and are equally
popular with English- and French- educated students.
Something you often hear, which is peculiarly Lebanese, is
the amazing ability to switch between French or English and
Arabic during conversation, or sometimes even in one
sentence. If you don't speak Arabic you will probably get by
with speaking either French or English.