留学生做菜聚餐时，可以通过以下方式表达感谢、鼓励和祝福：

一、开场白

直接表达

- "I'm cooking dinner! Welcome home!"（我正在做饭!欢迎回家!）

- "This is my first home-cooked meal! Thank you for joining me."（这是我做的第一顿家常便饭!感谢你加入我。）

情感共鸣

- "Cooking this meal reminds me of home and the warmth we share."（做这顿饭让我想起了家和我们共度的温暖时光。）

二、表达感激

直接感谢

- "Thank you so much for this delicious meal! Your cooking is amazing!"（非常感谢这顿美味的饭菜!你的厨艺太棒了!）

- "I'm grateful for your help with the groceries and the cooking. It means a lot."（感谢你帮忙买食材和做饭，这意义重大。）

间接表达

- "Every bite feels like a hug from home."（每一口都像来自家的拥抱。）

三、鼓励与祝福

学业鼓励

- "I believe you'll excel in your studies and make amazing memories abroad."（我相信你能在学业上取得优异成绩，并在海外创造美好回忆。）

- "Your hard work will pay off. Stay focused and you'll achieve great things!"（你的努力终将回报。保持专注，你将取得非凡成就!）

未来祝福

- "May your留学生活 be filled with joy, learning, and unforgettable experiences."（愿你的留学生活充满欢乐、知识和难以忘怀的经历。）

- "I'm cheering for you! Remember, no matter where you are, you're never alone."（我在为你加油!记住，无论身在何处，你都不孤单。）

四、互动环节

询问感受：

"How do you feel about cooking in a new country？"（你适应新国家的烹饪感觉如何？）

分享经历：

"Tell me about your favorite dish from home."（告诉我你最喜欢的家乡菜。）

示例完整对话

"Hi [留学生姓名]! I'm cooking your favorite dish. Thank you for sharing it with us. This reminds me of home. I hope your studies go smoothly and that you make lots of friends here. Let's enjoy this meal together!"（嗨![留学生姓名]!我正在做你最爱的菜。感谢你和我们分享，这让我想起了家。希望你的学业顺利，结交很多朋友。让我们一起享受这顿饭吧!）

通过这些表达，既能传递温暖，又能激励留学生积极面对挑战，同时强化彼此的情感联结。