You can read some leisure novels and jokes, read more evening papers and metropolis daily, watch all kinds of TV news and pop music variety movies and TV programs, increase topics and train your interest, so that you won't feel speechless when talking to people. Of course, the most important thing is to read more books. The phrase "your mind is full of poems and books" is not for nothing. With the accumulation of knowledge, there will be no shortage of topics and talks.

Another way is to strengthen your study and exercise your fluent and accurate expression ability by reading newspapers.

Also, you two should find each other's hobbies together, so that we can have a long-term topic.

I hope I can help you. Good luck.