If you watch, you will notice that the villagers will tell you what they are doing, or in your case what they are going to do. So when a villager is curious about the boulder and then decides to go back to researching, his action will be researching while he walks back to the table.
And as far as "going indoor", that is the action title with for the whole sequence, and most likely the little lady walks faster then him, so she went indoor and came out before the man ever reached the hut.

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The VI