i saw somewhere a pic of villagers on the ancient floor doing karate or sth.
how does one get their villagers to do this?

and what's the point/secret behind changing people wardrobes?
i've also seen a posting about marriage, but mine don't want to get hitched ;-)

those were "posed" pictures of villagers.

I change my villagers wardrobe to keep track of what task they are currently doing and then change them again when they become elders.

The point of changing people's wardrobes is as simple as that you have a choice to do it if it fancies you to do it. You could do as Anaksuel and use the clothes as markers or change clothes because you think the one's he/she wears is ugly or maybe there is a look-alike with the same clothes etc.

There are no marriages programmed within the game, just players who'd like to match the villagers. And of course they can be unfaithful then when the player is not looking..

Plus, one of the reasons for changing their clothes is to pose them for pics like the 'karate' one.