Happy to Serve- No! Really!

The people I've encountered in the Philippines so far are all very polite, if reserved. The people here in the service industry continue to amaze me though. Never have I been greeted by every member of the staff of a restaurant (or convenience store!) as i entered, sent off as i left cheerfully, or been treated as though everything i need is a joy to fulfill before. I am always called "Ma'am", and the cheerfulness seem totally genuine. Service with a smile isn't just an idea here, it's a way of life. I am trying to be very thankful to everyone who serves me in any way, and while Scott and i have tried to tip them at different times, it;s clearly not expected, and often they have disappeared before we get the chance to! So, from this i am trying to cultivate more of this attitude in myself in how i deal with others. i want to be cheerful and kind too. After all, these folks do it all day with tons of people, can;t i with the few i come in contact with at home?