It depends on where you work. Morley is so big that you never see anyone outside of your own department.
It's business casual, although a lot of employees try to push the boundaries on that. Plenty of people get sent home for wearing the wrong outfits and such.
The culture at Morley is nice, and when I worked there we hung out outside of Morley often. But mostly because the pay was so bad and the management made us feel so small that we had to hang out in order to avoid going crazy and quitting.
Be careful. Not all of Morley is as fantastic as it may seem.