Thongs, sneakers and sand shoes are not appropriate in some places. Western Asian and European cuisine. Or try a traditional 'mumu' of roast pork, sweet potatoes, rice and greens. Pay attention to warnings. Avoid local tribal conflicts.
Arguments can flair up with the slightest provocation.
These do not usually involve the tourist, but if you do see an argument brewing, don't stay to watch the action, leave the scene immediately. Tours can take a couple of days to arrange. Pick your tours before leaving home. Many thousands of tribes people take part. Accommodations are almost impossible during this time period, so book well in advance.