As you will notice, I can gain progress by watering corn, stomping wurm mounds, feeding cattle, and defending the fields. Each task you do will increase the total in the progress bar. You can choose to do the same task over and over again (allowing for respawn) or do a multitude of different tasks. It does not matter which task you choose and the choice is up to you.
Once you’ve completed the Renown tasks and filled up the bar, you will get rewarded with some XP and Karma. You will then also receive a letter from the NPC that includes some money as a reward. Fulfilling a Renown Heart also counts towards the total completion of your map.
Once you have finished the Renown tasks associated with a specific NPC, the heart floating over them, as well as on your map, will be filled. Once this is accomplished, the NPC becomes a Karma Merchant.
Guild Wars 2 offers quite a few unique mechanics and one of those can be found in how the game handles normal questing and rewards. Instead of hordes of NPCs with question marks floating over their heads, Guild Wars 2 has a more centralized system of questing known as Renown with rewards in the form of Karma. To fully explain these mechanics, Guild Wars 2 Hub offers this intro guide to Renown and Karma.
We’re all used to the standard MMO fare of grabbing quests from multitudes of NPCs in an area and then running off to do them. Guild Wars 2 handles this aspect in a different way. Instead of multiple NPCs that give quests, there are a handful of fixed locations in every zone that are known as Renown Hearts.
These are marked by heart-shaped icons on your map and will be highlighted by any scouts (people marked with the telescope icon) you interact with, along with what is need to complete each Renown Heart and its level. Each Renown Heart is associated with a specific NPC (those with hearts floating over them), and those NPCs will ask the players to help them. However, a player does not need to talk to the NPC to get the quest as just moving into the area will have it automatically show up on your screen.