Previous work has shown that compared to passive perceivers who view preselected information about target persons, active perceivers are less confident in their impressions, do not show increased confidence with increased amounts of information, and like targets less. The authors now explain these findings, postulating that perceivers without control over the amount of information they receive should be motivated to form impressions earlier, altering their information-processing strategies. Study 1 predicted and found that content-only active perceivers who control the content, but not the amount, of information show the same positive relationship between confidence and amount of information as passive perceivers, as well as the same reading-time patterns and level of liking. Study 2 used clearly valenced target stimuli and found support for the hypothesis that passive perceivers form more extreme early impressions, leading to greater liking when early information is positive but less liking when it is negative.