Collect every minion.
Collect every barding.
Not sure about achievements.
Help guildies or lowbies on dungeons, collect all dungeon sets for future vanity slots.
Talk to every NPC with title.
For those NPC without title, trigger them to speak by getting near them, do this for all NPC in Eorzea.
Open up every map.

Anyway, agree with Yagrush...unless you are legacy player, you are spending too much time with FFXIV, lol.