Macbook Slightly Water-Splashed

So basically i'm new to macbook moved from windows laptop i just bought this mac for a couple of weeks. Yesterday i was just doing my business outside a cafe just sitting there and did a skype call with my client, we were talking about a big project, i actually didnt notice the weather ( earphone plugged in) at all suddenly it was raining really really hard all my stuffs were wet so i just ran into the cafe with my macbook opens, then i realized that it got slightly water splashed just a few of them near on right enter and shift, it didnt get wet at all, i grabbed a lot of tissues and wiped them still talking to my client about 30 minutes after that. After i finished the call i immediately shut down my mac and i went home, i just let my mac opens with shut down condition with an air conditioned room around 17 degrees celcius and let it there for a night ( I just thought this way will dry the water if it got in to my mac), The next morning i still want to let it dry but i have a lot of business things to work with so i just turn it on and the macbook went perfectly nothing goes wrong it just like usual, didnt notice anything system error(s) until now (no freezes, no lag, no system error), but should i worried about it? or should i just bring this macbook to apple store? its only a little water splashed on it but im not sure if the water goes in or only on the surface. Is it got like waterproof stuffs or something under the mac keyboard?

Thanks Apple Communities.

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