Hey there! You just need to be trusted to access the mods; you can get to know the community just by enjoying yourself on the forums. Personally, I think the best way to get the communities vibe is to try the chatbox. It can be fun!
Anyway, I hope you enjoy your time here.
Hopped onto the Undertale train, now there's a big ass dog on my lap and I'm stuck here. Determination, etc., etc.