With the fall creators update Microsoft released a whole bunch of new features. One of the interesting feature is to pin three of your most frequently contacted or important people to your taskbar. Through this it makes it easier to start an email conversation or even make a Skype call with just a click form your task bar.
With the update, there will be a new icon on the task bar.
By clicking on the icon it opens all the contacts synced to the people app in Windows 10 and it helps to search and pin up to three contact you click to your taskbar.
Click on the pinned contacts will provide easy contacting options for those contacts