For a laptop 50°C isnt that much. But to feel comfortable , i guess you shall not hold your computer on your lap. You shall try to leave computer vents not blocked by your feet.
When you`re on desk , you shall put a book or whatever under it , to leave an inch of space for it to "breathe" , the side holes might not be always capable to cool it enough.
Also laptop coolers is a good(absolutely necessary) thingie to buy. You shall check Youtube reviews about one model or another and spend a bit more to guarantee your computer to be cold enough.