Something I like to do as I travel around Asia is check out the local convenience stores.  They are usually filled with what I as a Brit would call odd things.  I think you can get a good idea of the local tastes and likes, as well as maybe trying a new thing or 2.   7/11 usually reigns as king.

Now Taiwan had the weirdest and most interesting mix I’ve seen, possibly due to the Japanese, Chinese and western influences on the culture