I don't know whether she believed me or not but in any case it seems she doesn't automatically dismiss talk of the supernatural.

This time, so I don't run out of things to talk about, I'll write a list on the palm of my hand.

Because this is such a highly technical subject, I would like to point out in advance the likelihood that some of what I'm about to say may include information that is incorrect.

"Pretty gem, isn't it?" Not knowing if it was a suitable subject or not, but anyway I tried to get her interest that way.

Let's change the subject.

We talked about a variety of topics.

Hotly debated topics: proactive stance against discrimination and school busing.

She is very good at changing the subject.

She changed the subject.

She made news in that country.

I am quite tired of hearing her boasting. She should talk about other things.

He changed the topic of conversation.

He has no small talk.

He has a lot of topics for conversation.

He is familiar with the topic.

He remarked on the topic.

He is the doctor about whom I talked yesterday.

He is the boy of whom we spoke the other day.

Top among suitable topics is the weather.

If the other person does mention his family, then it is perfectly OK to ask about the ages of the children, and if you have children, to compare educational and cultural differences in raising children.