INFORMAL AGREEMENT

In interpretation of informal agreements, the rule to be applied is that of reasonable expectation; that is to say, the agreement is to be interpreted in the sense in which the party who used the words in question should reasonably have apprehended that the other party may apprehend them. If the intention is manifested ambiguously, the party manifesting the same in an ambiguous manner ought to have had reason to know that the manifestation may reasonably bear more than one meaning and the other party believes it to bear one of
those meanings, having no reason to know that it bears another meaning that is given to it.