Lauren Bacall for "To Have and Have Not" (1944), Bacall was so nervous that, to minimize her quivering, she pressed her chin against her chest, faced the camera, and tilted her eyes upward. This effect, which came to be known as "The Look", became another Bacall trademark, along with her sultry voice. Bacall's character in the film used Slim Hawks' nickname "Slim", and Bogart used Howard Hawks' nickname "Steve". The on-set chemistry between the two was immediate according to Bacall. She and Bogart (who was married at the time to Mayo Methot) began a romantic relationship several weeks into shooting. Bacall's role
Lauren Bacall views on numerous occasions. Bacall and Bogart were among about 80 Hollywood personalities to send a telegram protesting the House Un-American Activities Committee's investigations of Americans suspected of Communism. The telegram said that investigating individuals' political beliefs violated the basic principles of American democracy. In October 1947, Bacall and Bogart traveled to Washington, D.C., along with a number of other Hollywood stars in a group that called itself the Committee for the First Amendment (CFA), which also included Danny Kaye, John Garfield, Gene Kelly, John Huston, Ira Gershwin and Jane Wyatt. She appeared alongside Humphrey Bogart in a photograph printed