Simpers are often defined as affected, silly or timid smiles. However, there are several synonyms that can be used to describe this type of facial expression. These include smirk, grin, leer, smugness, snicker, sneer, and chuckle. Each of these synonyms has its unique nuances and connotations. For example, a smirk suggests smug and self-satisfied behavior, while a grin denotes a friendly and welcoming demeanor. A leer is usually associated with lascivious or suggestive looks, whereas smugness implies a conceited and self-important attitude. Regardless of the synonym used to describe simpers, they all indicate a lack of sincerity and true emotion, making them a rather disingenuous form of expression.