Are you afraid something is bothering your kid and hes not sharing it with you? Do you think someone might be making your kid uncomfortable or even abusing it?
See whats in the head of your kids. Use How I feel together with your kids to see what they really feel and think about the people in their lives.
The app uses the psychological rationale that kids associate emojis with feelings and might find it easier to communicate what they feel by tagging a person with an emoji rather than telling you directly.