I think commendations are given to the funniest and most entertaining players, ever since i started my new character on Siren I raked in more commendations than my first character on Leviathan has within my first week of playing the character. I am still not sure what I am doing to earn the commendations other than I know most of the dungeons and not making idiot dps mistakes like I did on my Dragoon on the other server.