刚到中国来学习不久的John应汉语老师的邀请去他家里做客，因此John向Bob请教相关礼仪。假设你是Bob，请你给John回一封电子邮件，告诉他一些注意事项。80词左右，开头已给出（不计入总词数）。

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Dear John，

I know that you will visit your Chinese teacher's home.If you do the following，I dont think you will feel uncomfortable.

First，you should arrive a little earlier.Being late is impolite.Second，it's also good to bring a gift such as some flowers or fruit.Third，you will probably use chopsticks to have dinner.Remember not to stick your chopsticks into your food.Youd better say that the food is delicious while you are eating.Finally，after dinner，showing thanks is also necessary.And you are not supposed to stay long after dinner.

Good luck！

Yours，

Bob