The best way to tame a dilo early game is to weave about so it can not hit you with its spit attack, just after it spits at you run in and start trying to knock it out ( punching works if there is no alternative) repeat this proses every ten seconds to avoid the spit . On a final note choose which dilo to attack carefully because you can easily be swarmed if there are any other dilos in the area
Tamed 4 in 10 minutes. 5 minutes later killed 3 Titan boas. These are a must have for beginners just tame loads and kill things like Titan boas and get great loot early in game. Must level health though it is terrible. Hope this helps.
If you are new to ARK then you should kill dodos for meat and although it will be hard for new players find some of these guys and knock them out feed them the meat from the dodos then tame them and use them while hunting cause there good for killing smaller creatures.