One of the things that I like to do is to make people cry. I put the father's right hand on his son's head and have him read (or repeat) the blessing that Hashem commanded the Kohanim (priests) to say when they bless the Jewish people. "Hashem bless you and guard you. Hashem make His countenance shine upon you and be gracious to you. Hashem turn his countenance toward you and grant you peace."
Often, when the father blesses his son, the love he feels for his son wells up so high in his chest that it overwhelms him and he breaks down crying. Sometimes we have to wait for a minute or more until he is able to continue. Also, often, when the son sees his beloved father crying, he too breaks down crying, and they stand there hugging and sobbing together. Their love for each other totally takes over.
It's so nice to make people cry at the Kotel.