Before revision:  We found that people exploited information in common ground with their partner to efficiently communicate about the target  : on far trials, sketchers achieved high recognition accuracy while applying fewer strokes, using less ink, and spending less time on their drawings than on close trials.
After revision:  We found that people exploited information in common ground with their partner to efficiently communicate about the target object : on far trials, sketchers achieved high recognition accuracy while applying fewer strokes, using less ink, and spending less time on their drawings than on close trials.