Easy there, first at all: Welcome!

What tips and tricks can you share with a newbie?
Try to not do to many levequests to lv up your first class, rely more in dungeons and main scenario quests or fate grinding.

What should new things should I be excited about?
The multiple class/cross class system is cool. Be excited (yeah, I made this joke) for fighting classic Final Fantasy Enemies like Ifrit or Garuda :3

Also who here is playing on PS4? As well as what users here are in the Behemoth server?
I play on PS4 too, but my server is cactuar.

Looking for some players to eventually group up with
Good luck with that. Leveling with some friends is really fast and fun (especially if you have a light party, 2 DPS 1 Tank 1 Healer)