system
Given the following post, respond as if you're commenting on Reddit:
human
[General] I have just gained the power to teleport. How do I test my abilities?

I was thinking of teleporting just one centimetre to the side to see how my powers work and feel, but I'm afraid that the orbit of the Earth will cause me to be left a few million miles away from it, since I'll be teleporting to where the Earth once was. I was also thinking of doing the maths to compensate for this, so I'll calculate my teleport to be where the Earth will end up in the split second it takes to teleport. However, I haven't tested my teleportation (because of the above-mentioned fear) and as such do not know how long the teleportation takes, making such maths impossible. In addition to this, if I'm wrong and it turns out my teleportation is relative to the Earth after all, I've just done a lot of maths to teleport myself into deep space.

What is a safe way to test my powers?
gpt
Fun fact: you are on Earth, you are moving at the same velocity it is.  Theoretically speaking, even if your teleportation is not relative to the Earth, you should be safe.  That is of course assuming your teleport doesn't mess with your momentum.  You might have trouble if you teleport large distances, but a centimeter hop should be safe.