Grouping is one of the best ways to level up in CoE! To group with other players, click on their character then click the group icon like
CoE Grouping
you see in this picture. You should be able to group then. Each group can have up to Five people total, and everyone in the group shares fighting and harvesting points. This means that every time your group members kill something or harvest something you get the upgrade points too! There are some other neat advantages to grouping. First you will automatically load into the same zone instance when changing from one zone to the next. Also you can use the "Chat to Group only" setting to talk privately with your group members. The final advantage is having a team when you go fight monsters!

CoE Group chat

Choose group Chat