When playing the game in the story mode, during the scenes when you see Dingo talking with other characters while inside Jehuty , move the Right Analog-stick. As you move it, the picture of Dingo will move around and allow you to see a little bit around him.
When you are listening to a conversation between the characters, use the Right Analog-stick to move Dingo's view inside his window to any direction. You can do the same with another character's window by pressing R2 and then using the Right Analog-stick. Use the Left Analog-stick to change your direction when you are in Jehuty's cockpit. Sometimes, pressing R1 may enable you to zoom in during a scene, be it inside Jehuty or outside. You can zoom in more if you press R1 harder.
During the scenes where you see Dingo talking with other characters while inside, press R2 to control other characters. Press R2 again to control Dingo. Use the Right Analog-sick to move the characters.