A Guerrilla closes at the beginning, right up-front, rather than at the end. The key to up-front closing is Intense Listening. Closing means eliminating the objections people come up with so as to not buy from you. Do this by being 100% sure about the need, their budget, who makes buying decisions of this type, and are they ready to make some kind of decision today. You find all this out before you talk about you, your company, or your products.