How to discreetly find out what the child is doing on the phone?

To discreetly find out what your child is doing on the phone, you can try dowloading spy apps, such as snapchat spy app https://www.hoverwatch.com which are designed to bediscreet and they can't be seen by the user of the phone on a daily basis. This app will defintely help you to find out any information you want to know. Also, such apps are available for any possible social networks and you can try them out as well.