I am a volunteer YoungLife leader, and our staff person came to our club meeting on Monday with pizza for everyone, when I hadn't eaten dinner. I had a shocked look on my face and told him he didn't have to do that and said thank you.
Yesterday at Benny's, a friend of mine who works there paid for my dinner. I immediately said "oh my gosh, thank you!" and thanked him two more times before leaving.
I came home this evening and my roommate left me a campus cookie on my night stand. This made my night because it was a very long day and to come home to my favorite snack, made me feel appreciated.