[This is a familiar gesture, Loki has done it a few times now but it feels different depending on the moment. Taako hates letting people get under his skin because it's so much once they're there and he loses the ability to keep his emotions in check, the way he does now as he squeezes his eyes shut to fight back the threat of tears.]

If you don't come back I'm gonna get the Starblaster and spend the rest of my life universe hopping until I find you and kick your ass.

[It's not a very funny joke, but he doesn't know what else to say.]