Whatever help you need in English, please don't hesitate to let me know :)
If you are very advanced in English, by that I mean you can have a full conversation with someone and understand them well - I have something for you to try.
Listen to this clip and see if you can pick up the main idea of what the joke is about:
Try these videos if you couldn't view the first video or if you want another challenge! (Joke from a comedian)
http://www.youtube.com/watch?v=QhoHcPH7aWA (WARNING: Contains one use of strong language at the end).
Take your time when learning languages; it can be hard at first.
"Just do it" :)