James, a businessman, is friends with Laura, the owner of a coffee and baked goods shop. Every day, James spends about ten minutes in Laura's shop, looking at the baked goods and usually purchasing one or two items. One afternoon, James walks into the store, looks at the items, and buys a $1 chocolate chip cookie. James waves the cookie at Laura without saying a word and leaves. Laura watches James shake the cookie and says nothing. Is there a contract? If so, how would it be classified in terms of training, performance and enforceability?