I've never conciously induced an LD, however as a small child DILDs occured quite frequently, and during the majority of them I was able to feel the bedcovers covering my body as I lay in bed while simultaeneously moving about in my dream. I think the best method for losing awareness of the physical world is simply to tell yourself to ignore it and be fully enveloped by your LD. However, if all else fails, you could try to summon up, for example, a howling wind to cover up any realworld noise pollution.

Benjamin