ASL Storytime and the kids didn't realize it was school

Today, the last day of the school week, we took a trip to the library for an ASL storytime.  There we meet an interpreter and a deaf lady.  While my mom had the children outside playing, we arrived early, I talked with the deaf lady and I also spoke to the interpreter some.  When it was time to start I sat down on the floor so E and W would sit on the floor to see the book.  I saw that they were trying to sign once in a while.  It was great.