If an offeror prescribes an exclusive method of acceptance, only an acceptance in the manner prescribed will bind the offeror; but if an offeror merely suggests a permitted method of acceptance, other methods of acceptance are not precluded. Restatement (Second) of Contracts § 30 comment b (1981).
Although silence does not ordinarily manifest assent, the relationship between the parties or other circumstances may justify the assumption that silence indicates assent to the proposal. Weichert Co. Realtors v. Ryan, 128 N.J. 427, 436, 608 A.2d 280 (1992). Moreover, when an offeree accepts the offeror's services without expressing any objection to the offer's essential terms, the offeree has manifested assent to those terms. Id. Performance in compliance with the terms of the agreement without objecting to the written terms acceptance of the offer's terms. Accord Allied Steel & Conveyors, Inc. v. Ford Motor Co., 277 F.2d 907, 911-913 (6th Cir. 1960); U.S. Ore Corp. v. Commercial Transp. Corp., 369 F. Supp. 792, 796 (E.D. La. 1974); Joseph v. Atlantic Basin Iron Works Inc., 132 N.Y.S.2d 671, 672-673 (1954), aff'd, 285 A.D. 1147, 143 N.Y.S.2d 601 (1955).