palm reading
US /ˈpɑːm ˌriːdɪŋ/
UK /ˈpɑːm ˌriːdɪŋ/

1.
the practice of telling fortunes from the lines, marks, and bumps on the palm of a person's hand
:
•
She went to a fortune teller for a palm reading.
•
Some people believe in palm reading as a way to understand their future.