It is pretty simple..I just use the shields after I pump. I remove the shield then bend over it and squeeze my boob into it. It might take you a bit to get the hang of it. I also switch and use each hand on each boob..that gives me more milk than just using my right hand.
Re: Hand expressing
This has a good video to show you how to do it:
https://newborns.stanford.edu/Breastfeeding/HandExpression.html
It is pretty simple..I just use the shields after I pump. I remove the shield then bend over it and squeeze my boob into it. It might take you a bit to get the hang of it. I also switch and use each hand on each boob..that gives me more milk than just using my right hand.