For those who give up on Duties too quickly, remember that the challenge to Duty Finder isn't about the Boss itself anymore- of course not, anyone can look up a guide on how the fight works.
The challenge to Duty Finder is to understand that each player comes from different servers, with different play time and skills- even different entire languages! The challenge and reward comes from finding a way to work together with these strangers to complete the task, utilising what functions Final Fantasy 14 provides us with: Marking, Waypoints, Word Translations- even down to the emotes.
If you're a new player- don't be shy, speak up if you're having difficulty and give it your all to work with these players! Don't feel defeated if you fall of the edge with Titan, or walk into Garuda's tornado.
Long-time pro Guild-master of an elite guild? Go easy on other players. Seriously. You was once in their shoes. You may only be grinding to get a Mount or Tickets for rare loot, but people can use your knowledge to find new ways to complete these challenges they're meeting for the first time.
Acronyms may not always help due to language barriers or new comers to MMOs. Go back to basics and talk about the challenge at hand, rather than rushing to attack the Boss the moment the Trial starts. Use the Tactics list in the Translation set to help each other out and you'll find a way through even the hardest combinations.
Most of all, have fun! No one likes to wait in a grinding queue for 1+ hour- we all know that- it get's frustrating! But try not to bring that mentality into the game as it may effect how you talk to each other. No one really wants to abandon the fight (or some may ask to be kicked for a better party- in which you may just have to let them go).
Greet each other, talk for a sec and understand everyone's position, check everyone's tactics and how they plan to play- and then Ready Check and go for gold!
Enjoy the challenge and remember you're all here together in this fight, and you all want to enjoy the game- so enjoy it!