Which preposition to use with conversational

in Occurrences 5%

He does not, like the bulk of parsons, solemnly work out all his divinity in the pulpit: preaching is not a sad, up and down, air-sawing, monotonous thing with him; he steps out of the sacred box when his feelings begin to warm up, moves to one side of it, then round the back of it, and then to the other side of it; talks to you and not at you; is quite conversational in style, and ignores everything conventional and stereotyped in manner.

Which preposition to use with  conversational