For some reason, when I meet Mao, he doesn't actually give a greeting as much as the command line for his greet.
By this, I mean it returns AI_DIPLO_FIRST_CONTACT_LEADER_MAO or something similar to that, though I think it's supposed to read/be AI_DIPLO_FIRST_CONTACT_LEADER_CHINESE_LEADER_1 that is read, giving the return text of "Greetings, [CT_NAME]. It is a pleasure to meet you. Here: have a copy of my little red book. You might learn something."
By this, I mean it returns AI_DIPLO_FIRST_CONTACT_LEADER_MAO or something similar to that, though I think it's supposed to read/be AI_DIPLO_FIRST_CONTACT_LEADER_CHINESE_LEADER_1 that is read, giving the return text of "Greetings, [CT_NAME]. It is a pleasure to meet you. Here: have a copy of my little red book. You might learn something."