Speaking from a player's perspective, aside from portraying yourself as helpful and a friendly character, do well to understand the rules. A GS should be aware of all the rules outlined in the ToS and apply them correctly. Anyone can remember the rules and regurgitate them back at the players. There are strict GSs and more layback ones, as everyone has their own style. Just as a player, when you tell someone to stop a behaviour, please be aware of the rules and what is "excessive" and "Spamming". Frankly I have seen some GS, tell a person to stop the caps when a player solely says "LOL" and once. No other chat after. To me its an abuse of power when a GS doesn't understand the rules and tells someone to stop.
I am ranting a bit now but good luck to everyone who views this thread. Be friendly, approachable, and helpful, yet understand the rules. Participate in Aeria events! You are representing the Aeria team so go beyond memorizing the ToS.
[A player's perspective on the type of GS's we vote for and give positive feedback on]
Edit: and 70 peer GSs are so pro^ try to go to them for help to be a GS + Meru <3