Since we live near a market, we often see the same folks every single day - the employees in the three dukas in front of our house, the woman who sells mandazi, Tanzanian doughnuts, our neighbors, the older woman selling charcoal. The list goes on.
And as is custom, we have to greet every single one of them, every time we walk by. To be honest, it was starting to grate on my Americanness.