I'd like you to try a challenge I used to give myself several times a year when I was a classroom teacher. First, divide a piece of paper into three columns. In the first column, make a list of your students. Try not to use alphabetical order, grade book order, or table groups to help you remember. Just write the names down as they come to mind.
Then, in the middle column, next to each child's name, write one thing you know that child likes to do or cares passionately about.
In the third column, make a star if you're sure the child knows that you know this about her or him.