What questions did Chris ask Gallien that impressed him?

From the text:

It was a two-hour drive from Fairbanks to the edge of Denali Park. The more they talked, the less Alex struck Gallien as a nutcase. He was congenial and seemed well educated. He peppered Gallien with thoughtful questions about the kind of small game that live in the country, the kinds of berries he could eat— ”that kind of thing.”