when wishing for luck, or
when telling a lie (and attempting to escape the moral and other consequence of that lie).
To put the middle finger across the index finger, especially
To wish or hope strongly for a particular outcome.
To humbly beg a person for aid or their time.
To direct words, thoughts, or one's attention to God or any higher being, for the sake of adoration, thanks, petition for help, etc.
Please; used to make a polite request