Ed, a businessperson, is a friend of Fran, the owner of a candy store. Every day, Ed spends five minutes in Frans candy store, looking at the candy and usually buying one or two candy bars. One afternoon, Ed goes into the store, looks at the candy, and picks up a $1 candy bar. Ed waves the candy at Fran without saying a word and walks out. Is there a contract? If so, how would it be classified in terms of formation, performance, and enforceability?