There are two ways that I know of:
One is through your "Settings", under the "Contact" 'Tab', in 'FamilySearch'.
The other is when you select the "Contact Name" of a User/Patron who has contributed details to a record.
Here are some "Knowledge Articles" in 'FamilSearch':
How do I view my relationship to a person in Family Tree?
Can I view my relationship from Memories?
I hope this helps.