Reviews Lip Service: Smiles in Life, Death, Trust, Lies, Work, Memory, Sex, and Politics by Marianne LaFrance Share this: Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print By Science News August 12, 2011 at 9:56 am A psychologist examines the science of smiles and their many social uses, from a baby’s enticing grin to a bully’s malicious smirk. W.W. Norton, 2011, 321 p., $26.95