Gadr da Klanz!
Where? - Nar Shadaa, Dantooine ; When? - When you have Mandalore
Just take Mandalore with you to where the mandalorians are, talk to them and be astounded to what will happen!
Where Were You?!
Where? - Peragus ; When? - After the Mining Tunnels
After the mining tunnels solve the Voiceprint quest go back to Atton and talk to him about anything. Then exit through the airlock. When you speak to him again from the exterior he will say that he couldn't find you even thou you were right next to him and speaking to him a few moments ago.
Too Many Hississes! (or whatever those giant lizards are called)
Where? - Korriban, Mysterious Tomb ; When? - You know
Get to the dead jedi. Search his corpse and 2 hississes will appear. Kill them. Search the jedi's corpse again and 2 more hississes will appear. You can do this an unlimited amount of times. You now have yet another source for unlimited XP!
To Be Continued...