Try and spend some time together each day looking at books, magazines, leaflets, or anything else that is interesting and enjoyable. Point to the words and pictures, find the picture of the .... , practise turning pages one at a time, and so on.
"That's not my..." books - these are nice to look and at feel, and there is a hidden mouse on every page to find!
Sound books - read the story and press the different sounds
Magazines - some students in Skye love car magazines. Others like comics, nature magazines, or children's television programme magazines.
TV magazines - find favourite programmes
Leaflets about places of interest - theme parks, farms etc.
iPad - find favourite songs/shows/pictures together on the iPad/phone/laptop etc - this is a brilliant way to practice reading as it is so motivating!