The trio begin strutting together in a linear motion, resembling a catwalk. Spears appears strutting in an underground party wearing a studded leather jacket and stockings. He is best remembered for his ludicrously attired and hilariously strutting "Professor Wallofski". He enjoyed strutting around in fatigues, and leading his Biafran commandos into battle. Courtship on the ground involves strutting with a raised tail and lowered wings. The male begins by showing his feet, strutting in front of the female. Each spring, males congregate in leks and perform a "strutting display". While strutting around the kitchen, he sings Frank Sinatra's song "Witchcraft". Courtship occurs through skypointing, strutting, and billing. Strutting or blocking between floor joists adds strength to the floor system. Music described the track as a "driving" and "strutting" one. In floors this type of bracing is also called herringbone strutting. This behavior is most commonly referred to as strutting. This use is also called "block bridging", "solid bridging", and "solid strutting".