I'll try add to this as much as I can! My contribution now will be somewhat limited due to tiredness and a report, but there you go. I guess you want non-personal things, and more observations of their characteristics/mannerisms? If so...
Master Xzar-Bin was always ahead of his studies and embodied his character to the T. He was blunt yet fair, and in his Padawan days could sometimes be outspoken in wanting to involve himself in inter-clan affairs. From what I recall, he was extremely protective of those he cared for. He, if I remember right, was keen on graphics software (things like Adobe Photoshop, Paintshop Pro) and went through a phase of skinning for the clan.