Stay here, we like you.  If you decide to return, take all your immigration information.  Take transcripts and a copy of course content you studied, take information about your university as you will be asked by a thousand guys what American schools are like.   Take a good cheap pair of sunglasses. Take a copy of your degree, take reciepts, take photos of your friends made here, take addresses, emails addresses. Take a good pair of walking shoes or boots, take a digital camera with card, take some money but money in US banks pays better interest rate.  You can withdraw from KTM. Take a bullet proof vest.  Money makes the best gift in Nepal, as most goods are available there to buy. 

Why not apply to do master's degree here?