You, a minor god, have grown bored of waiting for the next step in evolution. The other gods are tired of your complaints so they allow you to make one minor improvement to the human species. What change do you make?

Stretchable dicks

Just have one standard language everyone knows how to speak. Like the other languages still exist but everyone can kinda just learn those for fun.

People are born with patterns like cats.

More thumbs.

Make everyone smart enough to not be an anti-masker and anti-vaxxer