Nicky, if there is nothing to say, then there is nothing to say. Forcing a conversation is even more uncomfortable than sitting in silence. Also a person who can sit in silence tends to be more comfortable about themself, and have calmness about them. Not everybody likes someone who can yap all day about trivial nonsense.

How can you bore someone if you have nothing to say anyway. It's the other persons lack of imagination that is boring them.