This is first Errand you’ll get in the game, and it’s a simple enough job to complete. After talking to Rost, go find Odd Grata at her hut and talk to her to find out what she wants. She wants 5 meat and her prayer beads back that she’s left on top of a shrine. To get the meat, the simplest way is to use your focus to find wildlife around you and then go kill it. Boars are the best source of meat for sure, but if you can’t find them, any of the animals will give you meat that will count towards your total.
Once you’ve got the meat, follow your waypoint to the cliff, climb up it and grab her beads, then bring everything back to her to complete the quest. Nice and simple.