How to tell when your child wants to talk

When he was aged four to six, he chatted eagerly. Since becoming a tween things are different. How can you get him to talk about his school day?
Your motivation is key to a good conversation, says parent coach Val Mullally. Do you want to really connect with your child or hear their experience? Or are you ticking the boxes, wanting to know are they top of the class or did they get an A in a particular subject?