Original Commentary

Originally, the line in the last panel was "It's just that we look like doofs when we try to look unique." While true, I thought that it took the wind out of the next two comics; it looked like we were telling the same joke three times in a row. I think this works better - Terrence

Modern Commentary
If you're asking "How can I, the reader, tell Richard and Sinclair apart?", well, you can't. They're drawn identically. You can keep track of shirt colors after we specify which one is which, but there's no hidden tell.

Or if there is, Isabel hasn't told me either - Terrence