A Leaf-Looking Bug or A Bug-Looking Leaf?

Today, for the first time ever I saw a bug that at first I thought was a leaf. In fact there were two of them just sitting on my porch. After taking a few pictures I hurried to the computer. I wanted to Google them and find out what kind of insect it was. I eventually found out that they are Katydids. It was an interesting bug and I enjoyed seeing and learning something new.