As a Trooper, when you're sent to Belsavis with your class quest: 'War Crimes', as soon as you arrive at the planet, you get a message from General Garza, which gives you affection with all your companions, depending on which options you select.
Q1.1 gives 55 Yuun, 40 Tanno, 22 M1-4X
1.2 gives 55 Yuun, 20 Elara, 15 Aric, 22 M1-4X
Q2.1 gives 55 Yuun, 20 Elara, 15 Aric, 22 M1-4X
2.2 gives 55 Yuun, 40 Tanno, 14 Aric, 22 M1-4X
Q3.1 gives 55 Yuun, 20 Elara, 15 Aric
3.2 gives 40 Tanno, 15 Aric
Once the conversation is complete, head back to your cockpit, travel to Hoth, don't bother waiting for it to go to warp, stand up, reactivate your map, and travel back to Belsavis, and the conversation will begin again, once you get used to it, you can be back in the conversation in around 15 seconds after you finish the previous one.
Have fun!