Well-trained soul, you just arrived in Astrub. If you trained in Incarnam before, you sure already know a lot: enjoying your first fights and gaining experience.
I shall give you the most important information: you might not know it, but your quest for the Dofus, Dragon Eggs with tremendous powers, has begun. It is better to say it twice to be sure you clearly understood. In the numerous libraries of Amakna and elsewhere, you can find everything about the legends of the province.
Each creature has its own territory. You will have to learn where to find them, meeting other players with the same goal. Join the fight fast! Beginners will hunt to trade resources, get scrolls or learn a profession.

May the tips be with you! For beginners, attacking Gobballs to loot is a must-do. Indeed, their leather, saliva and wool are useful to craftsmen, therefore easy to trade. The Gobball Set is also quite powerful to begin with. At last, their horns are also used to create Wisdom Scrolls, surprising pieces of paper that will help you gain experience faster!