Apparently internet research is a win! I’ve managed to keep my two stick insects alive so far!
I learned that since they were clearly new hatchlings (since they were attached to their egg casings still), they can take a little while to actually start to eat. They were fairly active and now they’ve slowed down a bit in activity and no longer run around like little sticks on too much sugar.
They also occasionally keep all their legs in place and just move their body back and forth (swaying, it looks like dancing). And incredibly docile, they easily go onto my fingers and walk around a bit. Plus they’ve eaten! I’ve seen evidence of their munching on the leaves I’ve given them – they’re so adorable. Also, a response to them actually eating now is that they leave very little amounts of frass (poo) onto the bottom of their jar, I’ll need to clean it soon.