Yeah, Lik has a coded system he uses.
So like, you can tell him something, and he'll use the "Understood" emote, but if he ever uses the "Hello" emote, that's him doing his best Biff Tannen from Back to the Future impersonation. That's his way of telling you you suck.
Then, if he ever uses his "Thanks" emote, that's usually a sarcastic response because he just respawned, and you didn't save him before he died.
None of this is true, I'm just being a shit.
"Understood" is actually accurate. as for the other emotes, up to interpretation.