Legal analysis: If the actor implicitly permits the other party to continue to perform the contract, it is an implicit permission. For example, after the house lease contract expires, the lessee takes the initiative to hand over the rent to the landlord, and the landlord collects the rent without saying a word. At this time, the landlord implicitly allows the house lease contract to continue to be performed.

Legal basis: Article 140 of the "People's Liberation Army and Civil Code of the People's Republic of China" The perpetrator may make an expression of intention expressly or implicitly. Silence can only be regarded as an expression of intention when there is a legal provision, an agreement between the parties, or it is consistent with the transaction habits between the parties.