Okay, I'm taking some liberties with the spelling on this one, because no matter how hard I thought about it, I kept coming up empty for "X". Seriously, UK...nothing starts with X.
Anyway, an expatriate--when it's properly spelled--is someone who, either temporarily or permanently, is residing in a country other than that of their citizenship.
Since moving to the UK wasn't exactly our choice--I mean, we could have said "no", but why would you?--we had a lot of resources at our disposal. A family that was already over there sponsored us and helped us acclimate to life, which was a huge help, because we had no idea what we were doing. Even simple things such as where to buy groceries, or where you would find that weird thing you need at that weird time, were tough to start out.
So what tips would I have for someone living outside of their home country?
If possible, link up with people from the same country you're originally from. You can trade tips on living in your new home country, and get the warm fuzzies for the place you left behind, all at the same time. Where would you meet these people? I'd try searching Facebook for groups in the area you live in.
Kind of on the same token, make local friends. They can help you understand local customs, figure out where to shop, and all that good stuff. It's important you get to know the area and your neighborhood.
Use the internet. This is probably the biggest one. There are so many sites and blogs out there dedicated to people's experiences with living as an expat. It's a whole mine just waiting to be dug out.
Don't give up, and don't be afraid to ask for help. People are people, no matter where you live.
Sorry that one's a little short, but Y is up next!