How to tame a giga step by step for beginners:

1. Find your giga, they are usually at high altitudes, like around mountains.

2. Note it's location, so that you can find it again

3. Go home and build several metal gates and one behemoth gate.

4. Return to the gig

5. Build a ring around the behemoth gate, it can't fit through the standard gates.

6. Pick up a small herbivore and fly past the gig and get it's attention.

7. With it following you, fly through the open behemoth gate. Make sure that it follows you through.

8. Close the gate behind it.

9. Land and pump it full of darts.

10. Put raw prime meat in it's inventory

11. Boom! A new gig for you!

12. Realize that you died at step 1