How can I print out text messages

Salutations LawsonLodge, 

We understand that you’re wanting to print text messages from the Messages app on your iPhone 8 and reviewed What is Sign in with Apple? before posting your message.

To print text messages from your iPhone, you’ll need to get the messages out of the Messages app. You can do that by taking screenshots of the conversation or copying and pasting the messages to a text app like Pages, Notes, an email etc. You can then print screenshots from Photos or print from the text app. 

To copy in the Messages app, touch and hold a message bubble, then tap Copy. 

Thanks.