Hi Pika-duck welcome to the forums! I'm pretty new myself so I don't have many tips. But having had a bit of experience with other brony communities I have a few. Always be nice; but also know your boundaries. I used to let so many people walk over me (sometimes quite literally) because I didn't want to be NOT NICE. But the fact is you really aren't being nice to yourself when you do that. Try not to share too much information about yourself but I guess that could be said for most things online. Aside from those things I'm sure you'll have an awesome time here.