make yourself at home
Please come in and make yourself at home.
请进，不要拘束(就像在家一样)。
make yourself at home:请不要客气。
例：
Just help yourself.Make yourself at home.
请随便吃，不要客气。
Feel free to look around. Make yourself at home.
四处随便看看，请不要客气。
Have a seat. Make yourself at home.
请坐，不要拘束。