Speak English please, you're in the UK now

While I very much enjoy my work as a software developer and postgraduate research student at a university, the working conditions I have to endure are starting to get to me: an attic room that is always hot and full of fellow students who speak only Arabic, giving it the nickname of the Middle East. I have the greatest of respect for other cultures and this university is a particularly multicultural place, but I'm sure I can't be the only one who finds it rude to come to another country and carry on speaking your native language in the presence of those who don't understand it.