When in dungeons, caves and towers, the view switches to a first person perspective. Press up to move the party forward, down to move backwards, and left or right to rotate in each direction.
Approach a character in a town or village from the front (lower point) or side to begin talking. To advance the conversation, press or ( or for Classic Controller).
Walk into a building from the front (lower point) or side to enter. Interactions with characters and shop assistants will begin automatically.