Derpy is more concerned about avoiding bumping into anybody, considering a good portion of this crowd seems to care little for watching where they're going. Simple solution is she keeps pressed up against me pretty good, using me as a navigation tool. No complaints from me. Dinky, on the other hand, isn't tethered by a wing, and keeps trying to drift further while still 'holding' my hand, curious about the abundant magic she's witnessing. I guess she... 'feels' me tug the 'magic hand' she's holding my hand with? Any time she gets too far, a little pull and she perks up, and rotates back towards me.