Saturday and Sunday are the best days to walk around the city for two reasons: everyone else is doing it, and the city provides entertainment in the form of music and dancing.
First, the people watching part: both weekend days are big shopping days. On Saturday, all shops are open and are doing big business. Squeezing through the stalls of the Quiteño equivalent of a mall is an experience in itself. The shopping centers mostly resemble a U.S. storage locker facility where rows of 12 x 24 foot empty spaces face each other across a narrow hallway. Here, though, those lockers are packed to the top with merchandise of all types. One stall has underwear, the next has shoes, the next has small appliances, and the one next to that has mattresses (which reminds me, I need one.)