How much do you like ice cream?

When answering this simple question "How much do you like ice cream?", what is exactly going on in people's mind? Here are my speculations:

1. They search in their memories of eating ice cream and compute an average of all experiences.
2. They only focus on the most recent 5 experiences of having ice cream and average.
3. They focus on the most pleasant experience.
4. They combine the most pleasant experience with the most recent experience.
5. They think of a prototypical ice cream and estimate how much they will like it.
6. They think about the future and ask themselves how likely they will have ice cream and how much they will enjoy it.

There might be more possibilities. Now, the real difficult question is: are people doing one of the above or a combination of the calculations?