1. Direct refusal: If you think this invitation is inappropriate, you can directly refuse it. You can thank your boss for his kindness, but you should express your reasons for having other plans or not wanting to attend. For example, "Thank you for your invitation, but I have other plans today."
2. Humor resolution: You can resolve this invitation in a humorous way, so that both parties will not feel embarrassed. For example, "haha, boss, are you going to ask me to soak my feet?" Then I have to wash my feet well. I've been walking too much recently. "
3. Change the topic: If you think this topic is inappropriate, you can change the topic and let the other person know that you are not interested in this invitation. For example, "thank you for inviting me, but I'm not very interested in soaking my feet." Why don't we change the subject and talk about the recent business? "
Whichever way you choose, you should express your thoughts and feelings in a polite and respectful way. At the same time, we should also pay attention to avoid hurting each other's feelings or causing unnecessary misunderstandings.