First, prepare a clean and decent suit. When I go to my mother-in-law's house for the first time, clothes determine my first impression. Don't give others a sloppy feeling at first sight. If you can't even take care of yourself, who will entrust your daughter to you? Buy some presents. When you visit your mother-in-law for the first time, you must not leave empty-handed. This is a matter of courtesy. You can buy some slightly more expensive gifts if you can, but it's best to suit your own mind, not the more expensive the better.