If the spots are tiny, round and the same size, in clusters.
That sounds like the signs of spider mites.

If they are scooped from the surface and irregularly shaped, that would indicate thrips.

If there are white, loopy trails, Leaf-miners.

Either way, you are seeing the damage, not the pest.
If it's just a few leaves, they may have already been eaten by predators or have moved on to a different plant, or a different leaf.
And leaf-miner larvae may have already hatched.

It's a pretty normal thing to see on an outdoor plant.
Unless you see an active colony, it's best to leave it be.

Aloha,
Weezard