When listening to your children read, there is nothing more valuable than 'book talk'. Get them chatting about the book to help with their recall and understanding of what they are reading. If you need some help with prompts, below are booklets for KS1 and KS2 with ideas for questions you could ask your children while they read.
Supporting Shared Reading - TRUST
Take turns to talk about what you are going to read.
Recap predictions as you are reading.
Use lots of encouragement.
Share what you know about the text.
Tune-in and be interested.