Get them a gift, first of all. I have it a bit easier, since guys aren't as in to the whole flowers and chocolate bit... but still! Something nice.
Go to as nice a restaurant as they're comfortable with (some people just don't like super fancy places, so toning it down a bit makes for a better night).
Making sure we have an alternative ride so we can drink a bit if we want to do so...
And then renting a comfortable hotel room. ;3
If you were to be stuck in a foreign country for a year and could only bring one person and one personal item with a promise of basic amenities at your destination, who and what would you bring?