If you share me, you haven't got me-Riddle

Riddle 
Jaikaal and Sanjana were at a salon waiting for their turn when Jaikaal asks Sanjana, If you have me, you want to share me. If you share me, you haven't got me. What am I?

    A secret!

Mindyourlogic Riddle: Answer:
If you share me, you haven?? got me-Riddle