一回生，二回熟 Strangers the first time, acquaintances the second. The Handian dictionary explains: at the first meeting people feel like strangers, at the next meeting they know each other. Its example comes from Zhou Libo’s novel The Hurricane: “We were strangers the first time, and now we know each other. Be sure to drop in.”
多个朋友多条路 One more friend, one more road.