bilingualism

When I started to  search about what bilingualism is, there were a ton of info on internet,  of course, I didn't read a thing, so I will keep my idea of what bilingualism is; the capacity of speak, read, listen and write two different languages, as simple as that.
Apart of English, there are another idioms I would like to learn, for example, Italian and German, but I think it is too much for me, even thou there are relation between Spanish and Italian, and German and English, so they would be easy to learn. In any case, I have to get focus on English, cause is my priority.
I once had an experience has a translator, well in that case, as an intrpret, it was difficult because it was my first time, so I was nervous. I remember when the spanish speaker was talking, I was trying to keep the ideas on mi mind and find the proper word in English, but meanwhile I was forgeting the other ideas, everything was a mess, I didn't knew what to say. At the end, I just said  some sentences, and nothing else. I was so ashamed and uncomfortable. I didn't knew what to do.

This is a video I want to share with all fo you guys, If there is a language we all know, is the music language. This is Bobby Mcferring with an interesting experiment. Enjoy!

http://www.youtube.com/watch?v=ne6tB2KiZuk