When people make choices, their gaze patterns can reveal the motives underlying the decision process, because they spend more time on items particularly relevant for these motives. We investigate how untrained people use gaze patterns to uncover the motives behind others' decisions. We display recorded or real-time gaze patterns of one subject to another, and let the latter subject infer the former's prosociality. While the recorded gaze patterns provide strategically undisturbed information, the real-time gaze patterns require taking the strategic component of the interaction into account. When gazing is non-strategic, observers can recognize the more prosocial or generous decision makers. In contrast, when gaze is transmitted real-time, the eye-tracked decision makers successfully alter their gaze to appear more prosocial. [more]