在签订合同时，作为买方要尽到必要的审慎注意义务，比如，核实房屋所有权人信息、房屋是否被人占用等相关信息，并在合同中明确关于交付的具体时间、地点，以防履行合同时双方产生争议。
When signing the contract, the buyer should perform necessary duty of prudence, such as verifying the information of the house owner and whether the house is occupied, and specify the specific time and place of delivery in the contract, so as to prevent disputes between the two parties during the performance of the contract.