Kalled said:
Does preaching the word necessarily mean preaching a sermon though? Can't we preach the word through dialogue or through other means rather than in the form of a speech or lecture?

I could answer that but after reading what J_Edwards already said in this thread, I would be just repeating what he said. Not only that but it would not be said as well as he put it.
So I think you will find your answer in his post.