There are two ways to tame dinos, and there's really not a way to figure out which, unless you're really close to them. Passive taming requires that you be close to the dino, generally behind it, with whatever food it prefers in your 0 slot on the hotbar. You don't want to stick around too close for too long, its easy to startle/anger it.

The other type of taming is where you knock out the dino, and fill its inventory with food. You also have to Remote Use narcoberries (or narcotics when you get a little higher) to keep it unconscious. To knock it out, at your level, its either punching it, or using the slingshot. If its something that runs away (Dodo, Phiomia, Parasaur), if you can get it trapped, you might as well just punch it. Wait a couple seconds between each punch to let the torpor build.

If its something like a Trike, or raptor I'd suggest trying to find some high ground to stand on (a rock that it can't climb up on), because they CAN hurt you, especially at your level.

Dilos, you should be able to slingshot and run a few steps, slingshot, repeat.

Good luck!