More specifically, in between the tip and the crease of your finger, So basically centered on the last joint. Also, keeping the pull straight is important so you don't push left or right. You can still pull a shot off target with the proper alignment of the trigger finger when it's canted to one side more. I knowingly do it all the time on my tiny single stack griped handguns like crazy, I can't shoot worth shit with them, but shoot my double stacks like a freaking boss. I'm glad she mentioned the grip size because that is a super important detail. The modesty she presents in her videos is a great cover for her. She screams dirty little girl underneath all the socially accepting general audience vibe. You go girl!