The deposit is easy to pay but difficult to refund. Don't pay the deposit to the other party casually. When signing a contract, we should also pay special attention to the terms such as "the deposit is not refundable" to avoid damage to our interests. In addition, before signing the agreement and paying the deposit, we should pay more attention to the other party's reputation and ability level. If the other party has an oral commitment, it is best to write the other party's commitment into the agreement and keep written evidence.