Dialogue in Mass Effect Andromeda is primarily how you interact with the Characters in the game. The Paragon/Renegade dichotomy of past games that was tied to reputation is no longer a gameplay feature and has instead been replaced by a more varied series of responses. There is also no longer any tracker of reputation, visual or otherwise.
As you engage in conversations with other characters, you will have choices in how you respond to statements and questions. The types of responses you give will have an impact on how other characters see you and how the game's events play out. Conversations can lead to animosity or improve relationships, over time even leading to Romance with certain characters.
When you must make a choice of response the game will prompt you with a conversation wheel to choose from. You may choose a response that corresponds to the following emotional categories:
Additionally there will be times where you can flirt, ask a question or cut the conversation short by advancing to the end.