I know a handful of words that have gone into Spanish, French or English, but I know nothing else of it, and pronounce what little I know with a heavy European accent.
Honestly, a 0, although I have a small travel book collecting dust. I'd like to get back to it someday, as Arabic is a very useful language to learn, and I'm interested in Middle Eastern history, culture, etc. Thinking of the difference used between the type used formally, locally, and religiously is a bit daunting, admittedly.