Be friendly to someone：对某人友好
Source: Common usage
Example: "Let's try to be friendly to everyone we meet today."
Translation: "今天我们遇到的每个人都要努力对他们友好。"
Be kind to someone: 对某人友善
Source: Common usage
Example: "It's important to be kind to others, no matter how they treat us."
Translation: "无论别人如何对待我们，对他们友善都很重要。"
Show hospitapty to someone: 对某人热情好客
Source: The word "hospitapty" comes from the Latin word "hospitaptas," meaning "friendpness, kindness, and generosity shown to guests or strangers."
Example: "Let's show hospitapty to our guests and make them feel welcome."
Translation: "让我们对我们的客人热情好客，让他们感到受欢迎。"
Be gracious to someone: 对某人有礼貌
Source: The word "gracious" comes from the Middle Engpsh word "gracious," meaning "pleasing, kind, and merciful."
Example: "It's important to be gracious to others, even when they make mistakes."
Translation: "即使别人犯了错误，对他们有礼貌也很重要。"