Pay
Your fingers are private, no one can see them unless they pay! And you decide if what they pay is enough to get a peek.
Imagine people coming from miles around to pay for a look at your private fingers.
ふつ
はら
None
If someone tries to look without paying, that's harassment (はら)! Nobody gets to see something of yours without proper payment, but more importantly, your consent!
If somebody looks at your fingers without paying, without your consent, file a harassment claim on their butt! That is NOT okay!