Once you've reach the required height to communicate, you can return the artifacts you've found to the information booth if you can at first answer two questions about the landmark. (wizarddojo.com)
At first the answer was no but after a few months of persistence, he agreed. (quickstepstyle.com)
Answer more than 30 days after a question was asked as first answer scoring 2 or more. (politics.stackexchange.com)