Have you ever experienced, some people mad at you in dungeon run? Follow this step in order to be good player if not the best.

1- Know your class. Every class has different play style. Know your class limit.

• Tanker, Healer, Damager
• AOE, Range, Melee
• Remember your dodge skills type

2- In a team;

• Access your team capabilities. If you got WEAK party, take time to finish the dungeon, don't rush like you're in STRONG party.
• Don't be a HERO,  make sure each class play their role. For example, if you're an archer, don't act like you're a tank to hit first. If you got tanker in your party, let him do his job.
• Dodge! Dodge! Dodge! A dead DPS is not a DPS. Yeah, healer can resurrect, but it's gonna takes time. Dodge first, hit second.
• If you got low HP, retreat, go to healer, so healer can heal you easily. Don't make healer find you, it's not effective as healer need to focus on other players too.
• If you're not tanker, and you got tanker in party, stop attacking so that tanker can get back aggro.