Build finger holsters around the handle
Flex the fingers back and curl the fingertips so the handle can sit against them. Push against the handle without wrapping the fingers around it and squeezing, while also avoiding a barely-there hold; the stated aim is secure connection without squeezing.
Channel: stayhandsy
Watch official source at 8:33Why this context matters
The coaches call the finger-to-handle spaces holsters or a bird cage.