In my leisure time, I love gardening. One of my hobbies is to collect Japan maples. At one point, I had more than 40 different kinds of cultivars, some of which can be seen from my photos at http://www.cspl.umd.edu/kjrliu/Maples/. I used to grow many trees from finding seedlings around my garden and backyard and then gave away when getting bigger in hope of a greener and better world. I also grow 20+ varieties of vegetables in the summer and fall and share with friends the joy of produces.
I love to travel around the world and enjoy different cultures and humanity from around the globe. Some of my impressions of places can be found here: http://www.cspl.umd.edu/kjrliu/travel/.
As a cooking enthusiast, I have over 60 recipe cookbooks from all different regions and a collection of spices from all over the world. I love cooking food from different cultures, besides Chinese and American, including from Japan, Korea, Vietnam, Malaysia, Indonesia, Thai, India, Iran, Lebanon, Israel, Turkey, Egypt, Morocco, Greece, Italy, France, Germany, British, Spain, Portugal, Brazil, Mexico, Cuba, Peru, etc. I also brew various kinds of beer from different regions.