What character trait do Jem and Scout illustrate with their ambivalence about taking the pennies?

Honesty. Toward the end of the school year, Jem and Scout find two polished Indian-head pennies, good luck tokens, inside the same knothole. The children don't know if the knothole is someone's hiding place or if the pennies are a gift, but decide to take them and keep them safely at the bottom of Jem's trunk.

What does it mean.

I don't know.