Don't me intimidated by their acid spit and their aggressive behavior. As long as they are fairly low level, a new player can knock them out with fists alone. You just need to turn your look sensitivity up and then you can effectively stay behind their head faster than they can turn. If you have a club, you should be able to knock these out without taking any damage. Very easy early tame; would recommend at least 2 and mate boosted if possible. Then leave them in your base on neutral for when your offline.
1.kill some dilos, dodos or compy so that you can collect meat.
2.Craft a slingshot, wooden club or you can beat it with fist (If your trying to knock it with fists choose a low level one; if with slingshot collect a amount of stones first also remember wooden club breaks fast so craft and keep atleast 3 more wooden club for backup)
3.Find a dilo
4.after it's unconscious open its inventory by going near to it and tap and hold. After you need to put some meat which we collected at first
5. Wait.....if your dilo eats all the meat but still not tamed put some more meat to its inventory and wait......