Private Actions are a recurring feature in the Star Ocean series. Private Actions are special scenes between the main character and a party member that determine a number of things, such as affinity between party members, specific character endings at the end of the game, recruiting certain characters, and more. In addition, certain techniques and rare items can only be obtained in Private Actions.
Private Actions must be manually activated outside of most towns, causing the party to split up and explore the town seperately; the characters will not appear if the team has not split up. Speaking to characters inside of town can trigger a scene if the qualifications are met.
Private Actions are automatic, and can only be triggered with characters that are not currently in the active party. The characters and their scenes can be encountered anywhere, from towns, to the depths of dungeons, or the field map.