I've accidentally spilled a bit of water on a small part of my keyboard, I immediately turned it off, picked up the cup and soaked up the water with a tissue. I shut down my mac, shook it upside down (no water came out). I left it in an upside down position for a few minutes, then turned it on, and everything is working fine. (Even the keyboard lights.) Should I do anything else? Is there a risk of anything?