It's a very interesting conversation between two typical chinese person. Obviously, the answer is in the last sentence, apostrophe in the middle of the sentence means the speaking is wavering, thus the answer is in the end of the last sentence. In addition, using "我说" to start a sentence means the speaker is prepare to share his/her opinion or make jugdement about something.

某人先说。

可以出一道汉语四六级的题目。

呵呵，是让“某人”先说。 小明本来想自己说的，但是又犹豫了（觉得不太好意思或者是不敢说了），于是就让“某人”说了

那个“某人”。好无聊啊，在这里都是外国人问，中国人回答的。