You can print the appointments details from your individual appointment details pages.
To do this, navigate to the appointment detail screen for the appointment you wish to print and click the "Print" button in the top right:
Once you click the print button, a new tab will open on your browser with a quick preview of what the appointment print out will look like and an option to choose which printer you want to print to:
This can be helpful if you want a piece of paper to take notes on during the appointment or you want to hand your client something at the end of their appointment to recap what you went through during your time together.