My macbook seems to be overheating

Sorry to bother you but just two days ago I recieved a Macbook Pro '13 inch as a present. I've been told how great these laptops are. However my macbook seems to overheat often. I've searched up a few discussions and its said to keep it on a flat surface, which I do and that happens to be my desk. It's got enough space to breath and its not surrounded by dust.
However I'm a person who likes to download alot and watch movies and it still overheats. I've been told about SMC but not quite sure about.
As a new apple user I'm confused, can you please help me out?

it's not overheating, macs just run hot..especially when watching movies or playing games.  Your mac would automatically shut down if it got to the point where it would get so hot it might cause damage.

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              QuickTime Plugin: Version: 7.7.3
              Flash Player: Version: 12.0.0.77 - SDK 10.6 3rd-Party support link
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              SharePointBrowserPlugin: Version: 14.1.0 3rd-Party support link
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                   3%          WindowServer
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