The design is based on the hidden information treatment in the moral wiggle room game by Dana, Weber, and Kuang (2007). Subject A can choose between two Options 'high' and 'low'. His payoff is directly connected to his choice and is known to subject A. Also, the payoff of subject B is depending on the choice of A. Here, at the beginning of the game either the interest are conflicting or aligned. If the interests are aligned the 'high' option is best for both subjects. If the interests are conflicting, the 'low' option is better for subject B and worse for A. In this case, subject A would be in a social dilemma. Subject A can decide whether he wants to learn whether the interests are aligned or conflicting. (This is the primary outcome variable.) In order to maximize observations, we use the stratetgy method for the information decision. To boost reflection, we use a questionnaire that half of the subjects in the role of A have to fill in. (This is the intervention.) In the questionnaire, A has to answer questions on his future actions in the game and thus ex-ante think through and reflect the game.