Hello. 
I am currently developping some exotic cultures for a campaign of mine and I'm at a lost. I want those cultures to have interesting customs, mainly with two effects in mind : 1) To underscore the fact that these are alien cultures (as in "weird and exotic", not in the "space alien" sense) and 2) maybe to generate cool and interesting plot twists or adventure ideas.
You see, my PCs are from a huge decadent and civilized empire but will be exploring many out of the way places in the future. So, the "discovery" angle is pretty important.
I'm having trouble thinking of really original ideas, though. So I am asking for help.
Do you have examples of mildly strange, wildly weird or just a couple of plain interesting customs you have seen or heard about ?
These can come from real-life cultures (sociologists and anthropologists, I'm looking at you
) or fictional ones (a rpg setting, novels, your imagination...). The game itself is fantasy but some ideas from the modern world can be adapted and others might be of use to other game masters so post away ! Also, they don't need to be huge differences either. Sometimes, small details are as important.
Note that I need ideas for both "civilized" nations and "barbarian" ones.
Any help will be appreciated. Thanks.

I am currently developping some exotic cultures for a campaign of mine and I'm at a lost. I want those cultures to have interesting customs, mainly with two effects in mind : 1) To underscore the fact that these are alien cultures (as in "weird and exotic", not in the "space alien" sense) and 2) maybe to generate cool and interesting plot twists or adventure ideas.
You see, my PCs are from a huge decadent and civilized empire but will be exploring many out of the way places in the future. So, the "discovery" angle is pretty important.
I'm having trouble thinking of really original ideas, though. So I am asking for help.

Do you have examples of mildly strange, wildly weird or just a couple of plain interesting customs you have seen or heard about ?
These can come from real-life cultures (sociologists and anthropologists, I'm looking at you

Note that I need ideas for both "civilized" nations and "barbarian" ones.
Any help will be appreciated. Thanks.
