How can I navigate to the mysite of someone else?

 In this article, how to find the site

You can browse MySite in couple of ways but keep in mind you will get only the information which User Shared or common information from profile.

you can search the User from people Search or go to your own newsfeed check for organization chart.

Once you click on the user's profile link it will bring the user's profile page.

on this page left handside, you will see the information which user allow to see other.

If you have permision on user's one drive then you will see document link.otherwise you will see the About user and People.