At first you want to try to water in a little circle just so you don't give the seedling "wet feet" but you also don't want the rest of the coco to dry out completely. Depending on the mix it can be a little hard to get the coco wet again without drenching it. It's sort of a balancing act but once the plant has really started growing you can start watering it thoroughly and it'll be able to drink all of it fast enough it doesn't get droopy 