We, in RPG have several good methods in which you can donate to RPG. I'll list them all down for you so you could know all the good and many methods you could donate to RPG.

1) By making good RPs and letting others have an enjoyable time
2) By being a good member and follow the rules... this also means donating your time to report rule breakers and bots when you see them.
3) Be a good RPer and respect your fellow members and the GMs of those RPs
4) Donate your time and help other members when they need or want help
5) Donate to the guild by the grand payment of FUN. :D