Suggest another drink
I’ll be here all week
There’s an XKCD for that:
https://xkcd.com/2346/
I’ve had to do it quite a bit lately. Most recently this past week when a friend came to town from another state. They usually stay here. I told them as much as I miss you and would love to see you, I have people that depend on me and I cannot afford to get sick or get them sick. We’ll have to catch up each other another time. They were offended and honestly I don’t give a flying eff. I’m not risking my life or others because your feelings are hurt.
“Piss off, I don’t wanna catch corona”
Tell them you’re doing your part. If they demean you, say you don’t want the deaths of grandparents and cancer patients on your hands because you were feeling like socializing. Be direct.