Don t be vague. Now you present your recommendations. You get upset. Instead be prepared to discuss about some of your recommendations. Have some alternate steps to recommend if you need to negotiate.
Some presentations don t succeed because the presenter refuses to negotiate.
He or she gets so flustered that all the work done on the presentation is lost. Always leave room for everyone to be able to change a position without losing face. Learn the power of silence. You know what you think. Be quiet and find out what the other person is thinking.