Every country I would go to, even if it was just on a modeling job, I would go to their markets. If I went to Morocco for 'Elle' magazine, I would be in the spice markets during my off time and just come back with a suitcase full of stuff that I really wanted to try.
All good actors are very bright. You can't be stupid and a good actor. You may be inarticulate, you may not be highly educated, but all good actors are quick-witted, some of them dazzlingly so. All you do is guide them.