Crossword puzzle clue "left brain's forte supposedly"

Left brain's forte, supposedly

Wrap right over left, tuck right underneath, pull, pinch right in a loop, wrap left around, push left through hole to create loop, pull loops

Brain-to-brain phenomenon

Bertrand Russell supposedly said that it "does not determine who is right--only who is left"

Forte whose forte is football

Left-brain activity

Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start; etc.

Actor Penn who went to/left/returned to/left again Washington