So thankful I was born speaking English, because I would hate to have to learn it.
As far as natlangs go I have some French, Japanese, and Spanish, plus I've studied Hebrew, Greek, and Hawaiian, also Ancient Egyptian and bits (mostly grammar) of many many others. I love languages but I tend to absorb the grammar of any given language and then move on before I've gotten enough vocab to make it useful, so... not so much with the speaking of most of them.
Conlangs are my primary linguistic interest:
Esperanto (basics mainly)
Quenya (fluent) and Sindarin (somewhat) from LOTR, as well as Tolkien's other languages
D'ni from the Myst/Riven etc games - was pretty fluent at one point, bit rusty now
Not sure that I consider the Star Wars 'languages' to count, but I know bits of them
Klingon - the ugliest language ever invented, love it but only know a little
Atlantean - Marc Okrand's creation for the Disney movie, such little of it as there was
Al Bhed also doesn't count, but it's fun (and phonologically fascinating)
The Divine Language from Fifth Element - ehh I have mixed feelings about this one, but again, fascinating (in a train wreck sort of way, admittedly)
Not sure where proto-Indo-European fits in, but that is some amazing interesting stuff.
I'm forgetting some, but those are the main ones. I've also got several of my own languages I'm working on - ar-Medyan, Deyati, and some that aren't named yet.
