Firstly your Chobot should be well established in the Chobot community, ie, don't expect to become an Agent after just a few weeks of playing as you will need to prove your worth and this takes some time, personally I think over 100 days at least.
* Make a Chobots blog that you regularly post on, it shows commitment, if you're interested in the game and the community then you will find this a fun thing to do
* An obvious thing is to follow the rules yourself at all times!
* Take part in things that are happening in Chobots, parties, blog contests etc
* Learn the game well, know how things work, how to earn bugs, how the games are played etc
* Look smart!!
* Help people who ask for help, standing around constantly saying "who needs help" is actually more annoying then helpful I think, even worse and you stick out like a sore thumb, is if you start spouting this as soon as a Mod is about^^
* Be nice, be kind, be patient and be friendly, some players are very young and need that extra little bit of help and understanding with some things.
Doing these things will help you become well known in the community and your name will be remembered for doing good things.
Some things not to do..............
* Don't ask to be made an Agent, it's never going to happen that way!!, other Agents and Mods will soon recognize a good Chobot and your name will be put forward as a possibility
* Don't ask for rain at parties, it's really annoying to Mods and Agents
* Don't break the Chobot rules.
* Don't ask to be recommended, you will annoy the Agent you ask and be remembered for this
* Don't threaten to quit as soon as things don't go your way, Agents aren't quitters they're made of stronger stuff, that's why they have been awarded a badge, nothing is worse than to keep hearing the words "It's not fair"
* Don't break the Chobot rules, if you can't follow the rules yourself then you can't expect to be made an Agent
Like I said, these are just some tips and they are some of the things I look for in possible Agents and some of the things I see and think, not good Agent material, bare these things in mind if you someday wish to become an Agent.