1) Be Courteous
WoW is a game of social interaction. Being courteous to random dungeon groups (PUGs or “Pick-Up Groups”) can sometimes lead to new friendships. Being courteous to guild-mates and everyone you meet can be quite rewarding in both the short-term and long-term. WoW at its core is a game of teamwork. It requires a lot of help along the way in various aspects and since no one likes to hang around someone who is mean or ungrateful, being kind will get you far.