"See you, have a good day" is a polite and common way to say goodbye to someone. However, depending on the context and relationship with the person, there are other phrases you could use. Here are some options: "Take care": This is a friendly and caring way to say goodbye, particularly if the person is going through a tough time. "Goodbye" or "Bye": These are simple and straightforward ways to say goodbye. "See you later": This implies that you will see the person again soon, which is appropriate if you have a regular meeting or if you will see them in the near future. "It was nice to see you": This is a friendly way to acknowledge that you enjoyed spending time with the person. "Have a great [time/day/weekend/etc.]": This is a friendly way to wish someone well and show that you care about their plans. Ultimately, the best way to say goodbye will depend on the context and relationship with the person. As long as you're polite and friendly, you should be fine!