Responsive Web Design is an approach which facilitates easy reading and navigation across wide range of devices. This is done by using CSS3 media queries, which adjusts to the different layout and viewing device with proportional grids and flexible images.
1.) Explaining RWD to clients
One of the major issues related to responsive web design is explaining clients what is responsive web design. Old processes were very linear and easy to understand.
One of the easiest and logical way to explain clients what is responsive design is by actually showing them what is responsive design. This can be done by use of tools like wireframing or alternatively you can sketch it to show it to them.