We did use it when dd was really little, but I was never really sure if it was making any difference or not.
We did a lot of bouncing on the knee, putting baby high on our shoulder and patting really hard, holding like the picture Hillary posted and bouncing, bicycle legs, and tummy massage.
For tummy massage I'd just lay her on her back and rub her belly in clockwise circles.
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”