If people make arrangements to go for walk or to read a book together, there is no agreement in a legal sense. Why not? Because their intention is not directed to legal consequences, but merely to extra-legal ones; no rights or duties are to be created.
Sir Frederick Pollock, 3rd Baronet
10 December 1845 – 18 January 1937 Principles Of Contract, 1st edn, 1876.