More productively (or less, depending on your POV)... although I'm stating the obvious, it doesn't matter does it? : ) or the same with a dash in between are not anatomically correct faces... where's the ears, hair and such?
The point of emojis/ascii art is to convey a concept/meaning in a simple and easily communicable way, not to provide an accurate representation. This is especially true for things which have variance around the world. o7 is, clearly, a salute, and is two keypresses. <O ... looks like a bird... so it's not clear... also needs more keypresses (but the same as O7)
Regardless, I look forward to someone linking the Flag codes next time someone uses a flag emoji on here...