can you please help me?

Suppose that Everett McCleskey, a local business-person, is a good friend of Al Miller, the owner of a local candy store. Every day on his lunch hour, McCleskey goes into Miller's candy store and spends about five minutes looking at the candy. After examining Miller's candy and talking with Miller, McCleskey usually buys one or two candy bars. One afternoon, McCleskey goes into Miller's candy shop, looks at the candy, and picks up a $1 candy bar. Seeing that Miller is nearby, he catches Miller's eye, Miller notices him and smiles, McCleskey waves the candy bar at Miller without saying a word, and walks out.

Do you think there is a contract here? Explain your answer.

If so, can you classify the type of contract within the categories.