English, Spanish, American Sign Language, and Finnish. (THe only thing that I wouldn't include is that I did take two weeks worth of French in highschool before I transfered to a Spanish class. J'est Kirsi. C'est Alldeaf. C'est la vie!)
I did learn some of FinSL from my aunt in Pori, Finland.
I can do some of LSM because of the high number of Deaf Mexican (and South American) immigrants in my high school...but it is hard to sign only LSM because a lot of Hispanic Deaf around here used HSL and LSM together.
I can do BSL alphabet but I could stumble for some letters. I know one that is considered as an offensive BSL sign that goes somewhere "woman, man, sex, you" which was popular among San Diegans back in late 90s...
I know the sign for "Isolated" in Auslan (met an Aussie from some city called Periot or Deriot that is in SouthWestern of Australia known as the "most isolated city in the world").
Finland, included several other countries, has a mandatory for students to learn at least five European countries' languages. It has been required since ever. My mother learned six when she was in secondary school back in the 50s: Finnish, Swedish, English, Spanish, German, and Dutch before she migrated to North America where she learned French (due to live in Canada for four years) and American Sign Language (due to moi)
