Yes, of course. When you're saying something, you just need to write the text. For example: Hello everyone! But when you want to describe your actions, the actions of others, or anything related to the narrative, you need to write the text inside the * *. For example: *When my character entered the bar, he greeted everyone inside.* Well, in your case, it would be: *When he/she said goodbye to Rosalyn, he/she had no idea that he/she was talking to a psychopath* However, I should mention that these descriptions usually only affect what the characters say.