Your daughter may be young for this or not inclined to do it, but when my D was in middle school she realized she was having trouble with this. So she spent time on the computer looking at YouTube videos of people showing different emotions and trying to parse them. I think she both wanted to understand what various emotions "looked" like, and also practice showing them herself. She didn't tell me she had done this until a few years later, but I thought it was a really creative approach she designed for herself to work on this issue.
