Blinking can be troublesome when you are new with LDing. It can connect your dreams to what your eyes are doing and open them up. Laying down can also do this. I would recommend staying away from these until you know how to stabilize pretty well.

One way is to follow some stabilizing tutorials:
My Tutorial for extending Lucid Dream Time. Hours of LD. - Lucid Dreaming - Dream Views

I use dream control to do it with my watch, but that is a little more advanced.