Select PostEm.

Select the PostEm tool from the Tool Menu of your site.
View all participants' feedback.
View an individual participant's feedback.
In the row of the feedback item you want to view, select the view participant link.
Choose the student's username.

Choose the student's username from the dropdown menu next to Select a Participant.
View individual student's feedback.

This displays the individual student's feedback for the PostEm item.