Consent can be communicated with effect only by some act or omission of the party contracting, by which he intends to communicate it or which necessarily tends to such communication.
S.D. Codified Laws § 53-7-4
Communication of consent
Source: CivC 1877, § 892; CL 1887, § 3516; RCivC 1903, § 1210; RC 1919, § 825; SDC 1939, § 10.0316.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.