Be prepared for metric flight levels (fairly straightforward, we use a simple conversion table) and lots of frequency changes in the climb, which keeps you busy and can result in level-offs while the controllers sometimes sound like they have their head in a bucket, or are sitting in a metal cell.
Otherwise it is just like flying anywhere else..working out there would be something else, unless you speak Russian .. a new language is one thing, an new alphabet is quite another !
George