Water poured onto my laptop, what now?

Yesterday, very little water poured onto my laptop, I cleaned everything immediately and didn't turn my laptop on for a day. My question now is, how do I know if I have water damage, my laptop works successfully and the keyboard works great too

You were lucky. If everything works perfectly, everything is ok.

If it runs smoothly everything is fine! It just has to be well dried, but that seems to be the case with you