This is a very interesting question. I could write an article on the subject, but won’t. I will just offer some insights and will not write much in Portuguese!
The people seem very genuine. They are themselves and do not put on airs. They are helpful to estrangeiros in terms of directions and such, but quite unhelpful in language assistance. I got the impression they will be happy if you speak the language, but otherwise will prefer you don’t! Most will not help you learn Portuguese at all. Portugal is a very clean country (except for the graffiti), the city streets in Lisboa and elsewhere are cobblestoned and beautiful. The cobblestone is an ancient construction which is durable and requires very little maintenance. Some of the old apartments are centuries old and the keys are almost middle-ages in size, looks and feel. The architecture is ancient, yet modern and very, very beautiful. Multiple use of streets for rail, car, bus and bicycle is smart. Parking on sidewalks is a great idea! The use of “roundabouts” for traffic flow is better than traffic lights. The use of flowering trees and shrubs in the villas is appealing. The parks are perfectly maintained. The food is of much better quality than in America. The people are proud of their history (good or bad), they are proud of their language and customs, and it is very easy to melt into the flow of pessoas! Since I was born in Europe and spent my early years there, I appreciate the subtle and stark differences between here and there. I also understand and like the customs and easily fit into the flow of life. I am fortunate to have friends in Portugal.
I could find more to talk about, but this will do for starters.
Obrigdo pele pergunta. Harald