You post a list with the games you want but can't afford. If you want to gift someone yourself, you can either choose at random, or make a little contest, something along the lines of "First person to reply to this post gets a code for..." It's up to you, really :)
mmm... I'll have to think how to deal them, then.... thanks for the idea. I don't want to make the asking from a while ago useless, but I do feel that just passively asking for it isn't good enough too... Oh well, I'm sure I'll come up with something. Eventually. The games I have to offer are Divine Divinity and Messiah, btw.
As for my own wishlist... I think these are the few titles I'm still missing, which haven't been for sale since I came to GOG 196 days ago. And I'm buying them the second they go on sale. With any luck, tomorrow.
Duke Nukem: manhattan project
Legacy of Kain: Blood omen 2