Hey there! So if you use a recruitment code for your first subscription we both get some neat rewards thanks to the "Recruit a Friend" campaign. If you want some free stuff follow these instructions:
(Friendly Reminder: Please make sure you enter code BEFORE purchasing your first subscription! You won't be able to after.)

1. Login to your FFXIV account at the "MogStation" official site (http://sqex.to/Msp).
2. Click on "Your Account"
3. Click on "Manage Service Options"
4. Click on “Enter Recruitment Code”
5. Enter the code: 8CR4WRNT

Once you've done this you will receive the following items in your in-game mailbox for free (you may have to log out and back in):

(After subscribing for 30 days((not free trial period)) Friendship Circlet (bonus exp until level 25)
Aetheryte Ticket x 99 (free teleports)
Ballroom Etiquette - Improper Greetings (fist bump emote)
10 Silver Chocobo Feathers (used to get gear)