Circulate; 1/2 Split Circulate; Centers Hinge, Box Circulate & Trade as the Ends Circulate twice (around the outside).
Parallel Waves end in Parallel Two-Faced Lines.
From Parallel Waves:
From Parallel Inverted Lines:
anything Perk Up [C2]: Do the anything call; then Finish Perk Up (1/2 Split Circulate; Center Line Hinge, Circulate & Trade as Others (Concentric) Circulate twice). Usually ends in Parallel Two-Faced Lines. The anything call replaces the first Circulate.
See also anything Coordinate | Motivate | Percolate | Perk Up [C2].