How to tame:

1. Get large feet eggs, Brontos, Gigas and Carcha works best

2. Find a nest

3. Throw an egg far from nest, but in range of parent

4. While parent is busy eating, get close to nest, crouch and press E to hide in nest

5. Wait for baby to come by and do a dance, use A/S/D to copy baby movements

6. Repeat

Extra tip: a trap can be used to trap the parent, but be aware it needs to be in range of the nest!