"ACCEPTANCE BY CONDUCT contract law means that a party can be found by the court to be in agreement with a contract based on his or her actions, even if the contract has not been signed."

"The acceptance has to be communicated by either of the two modes, which consists of words that has been spoken or written, which means to be an expressed acceptance and the other way is BY THE CONDUCT OF THE PARTIES who intend to enter upon the contract. The Act states a Section 8 which comes up with the idea of the communication of ACCEPTANCE BY WAY OF CONDUCT as it says that when the party accepts to comply or complies with the terms and conditions of the contract, or receives any consideration, it automatically infers the acceptance"

Other examples of acceptance by conduct are getting into a taxi, bus, train, etc. "We enter into contracts every day. Taking a seat in the taxi amounts to entering into a contract."

"L’ACCEPTATION TACITE
• L’acceptation est tacite lorsque la volonté du destinataire de l’offre de l’accepter résulte des circonstances de faits.
• La situation la plus courante est l’exécution par l’acceptant du contrat, objet de l’offre.
• Dans un arrêt du 25 juin 1991, la Cour de cassation a ainsi estimé que « en acceptant d’intervenir dans l’exécution de l’accord, [le destinataire de l’offre] a nécessairement souscrit aux obligations définies par celui-ci » ( 1ère civ., 25 juin 1991).
• L’ACCEPTATION TACITE pourra également résulter de diverses sortes de comportements, tel que monter dans un taxi ou un autobus ou encore continuer d’encaisser les loyers nonobstant l’expiration d’un bail."
https://aurelienbamde.com/2017/01/27/lechange-des-consenteme...