Google Home started off with a modest number of services. In a few short month this has number has grown to 52. This is encouraging! (As of December 30th)
The syntax for using most of these would be something similar to:
“Hey Google let me talk to <service name>”
once the service is activated you have an open mic, meaning that you don’t have to keep saying OK Google. The mic is hot and continue to listen are you interact with whichever service you opened. This is fantastic.
In order to find your services ; click the top left three lines > more settings… > services