There are the "sight seers". The "see 16 countries in 2 weeks" tours were made just for them. They've been there, done that. Have the T-shirt and post cards to prove it. You can spot them by their loud voices, bad attitudes and constant critical remarks.
Then there are the "tourist". They have come to see something in particular and have made preparations by studying up on whatever that is. There is appreciation for a culture different than their own. You spot them on local tours (one hosted within the area) and in the historic areas, and they are usually are a fairly happy lot. They bring home objects that remind them of the places they saw.
Finally there are the "travelers". They come to be a part of the culture - to know it for its people, its history, its food, its everyday life. They learn a bit about the base history of the area (to be able to hold a conversation with someone they hope to meet) but they keep their mind open to what can be taught by each person they meet. You usually DON'T spot them as they blend in with the locals or at least look like they belong there. They bring home gifts given to them by the people they have met and shared with (and to whom they have brought gifts for - because they *knew* they were going to meet someone fascinating on the trip).