Sometimes you have to—or simply want to—say no. Here’s how to decline an invitation the right way and limit hurt feelings.

DEAR MISS MANNERS: I was invited to a Halloween costume party, so I put together a costume and attended. When I arrived at the hosts’ home, they were both dressed in costumes, and it was clear they ...

I do think people should be able to invite only their friends. But it seems that discretion on the part of the parent who is hosting would be kind.