 The campaign used a variety of nonviolent methods of confrontation , including sit @-@ ins at libraries and lunch counters , kneel @-@ ins by black visitors at white churches , and a march to the county building to mark the beginning of a voter @-@ registration drive . Most businesses responded by refusing to serve demonstrators . Some white spectators at a sit @-@ in at a Woolworth 's lunch counter spat upon the participants . A few hundred protesters , including jazz musician Al Hibbler , were arrested , although Hibbler was immediately released by Connor . 
