So I can close a conversation in Messages on my Mac and it handily disappears. I can't seem to figure out how to re-open that conversation manually (as opposed to getting a new message in that conversation, that is).
Closing means on the left panel of Messages. Hover over a person. An X appears in the middle of their "card" on the right. Click it. This closes the conversation and does not delete it.
Does anyone know if reopening these conversations is possible?