It is a nice place to go for a ride, with plenty of trees and flowers and an extensive craft market, We can't see the Palacio Vergara because it was damaged in the earthquake, nor the auditorium becuase it was beeing prepared for the Viña del Mar Festival.
In Chile the standard tip in a restaurant is 10% which is sometimes added onto the bill but more often than not you need to leave behind on the table. If paying by credit card you can ask to add the tip to the bill and indicate the standard 10%.
Do not tip taxis.
If you drive a car in Chile, in particular Santiago then there are places where you can park for free but there may be a man or woman "helping" you to park. This person works for tips. They can wash your car while you are away usually also. The tip you pay them should be anything from 200 pesos or more depending on the length of time you stay. I usually pay around 500 pesos.
In supermarkets the people who pack your bags only work for tips. They are not paid by the supermarket. Depending on the amount of groceries you could tip anything from 50 cents up to around 500 pesos. The 10% rule is not hard and fast here, just whatever loose change you have.
As most latin countries, when you say hi to a lady, you don't give out your hand. That's consider rude. When you say hi to her, you've got to give her a kiss on the cheek. More than a kiss, it's just a cheek-to-cheek salute. This is both for men and women. It's just one kiss, so don't try to give more, unless of course she's a pretty lady...