Oh oh! Let me try this one! I'm a professional tour guide! *twirls around in a circle and is magically dressed in tour guide clothes*
For events like these, you don't post in the battle field. You'd get killed. Post in the here:
http://www.gaiaonline.com/guilds/viewtopic.php?t=2315198 that way, you get to talk to other people watching and be like "Omg. She just totally kicked his a**." or "Omg. He's hot. I wish his shirt would burn off."
In any case! That's where you post for events.
If I just explained that for no reason, and your talking about posting in the actual roleplay, post here:
http://www.gaiaonline.com/guilds/viewtopic.php?t=2362445 .There you can met other noobies, and set up. Hope this helped. And I swear to god if someone anwsered your question before me. I'll shoot them. But, anyway, my way is alot cooler looking <3.
As for stars, the way I'm planning to get them is just do an outstanding roleplaying job, since my character won't be able to win fights against evil demon-kitty eating-monster kids. But there are many ways to get stars. Star info here:
http://www.gaiaonline.com/guilds/viewtopic.php?t=576985