to keep the party alive and well

LeadingThe tank is usually responsible for leading the group around to their destinations, and is frequently the member who marks the enemy targets for DPS and CC priority. First In, Last OutThe tank should be the first person into battle under most circumstances. If the party is forced to run, the tank should be prepared to buy time for the other party members to escape - taking one for the team. The other party members can then (hopefully) resurrect the dead tank. Main Tanks vs. OfftanksIf there are multiple tanks in a group, a main tank should be chosen. The offtanks are responsible for helping out the main tank, by backing them up or by tanking additional enemieshealer's job is to keep the party alive and well with timely and efficient use of their healing spells. Healers include Holy or Discipline Priests, Restoration Shamans, Holy Paladins, and Restoration Druids. Purpose: To heal party members and keep them alive. Healing Tips Always pay attention to party members' hit points. You don't want to be in a situation where party members die and you could have saved them if you were paying attention

need of some extra mana on
Use keyboard shortcuts to heal people faster. One common method is using the Function keys to select party members and the number keys to cast your array of healing spells.Become completely familiar with your entire healing arsenal so that you know exactly what spell to use in any given situation. Don't burn through your mana too fast, use timely healing so that you don't waste mana from overhealing. Prioritize your healing targets when things get rough - you will likely want to prioritize the tank above all other members. Always try to learn and accept tips from others on becoming a better healer. Be PreparedAlways have the necessary tools of the trade on hand - reagents, mana potions, and water. Every healer will find himself or herself in need of some extra mana on occasion - having a potion ready could mean the difference between victory and a wipe. In addition, have at least one stack of the highest-quality water you have access to. The group only moves as fast as its healer, and having lower-quality water (or not having any at all) greatly slows down your mana regeneration between fights, and thereby the entire group