Being able to speak a language is subjective. I have many Japanese friends who speak beautiful English, but do not consider themselves to be English speakers. (This could just be Japanese humility though and not their true opinion： 本音 vs. 建前.
For example, I took a year of Latin and remember the basic sentence structure and vocabulary words. I do not, however, consider myself a Latin speaker. The same holds true for the other languages I have studied: Old English, Middle English, Spanish, American Sign Language, and Japanese Sign Language.
On the other hand, I have studied the Japanese language for years and still have many limitations, but have a proficiency level enough to work, live, and get in and out of trouble in the language. I use Japanese daily, occasionally dream in it, and while I still have much to learn, I do consider myself a Japanese speaker.
What about you? How many languages do you speak?