Ren waves his arms wildly to keep his precarious balance as Bridge suddenly ducks. Too bad Bridge doesn't have antlers today... those would have been super handy to hold onto and as a result he grabs wildly at empty air and just tumbles off, rolling a bit before popping up while the other kid Silvar nervously asks about wild animals. As Hikaru starts lecturing about them though, Ren gets bored and just kind of wanders off halfway into the lecture, skipping into view of the other guy to go talk to him. Maybe he'll be more interesting!
"Hello Mr. Broken Wagon Man! Do you require a-sis-tance?" he asks in an almost singsong voice, rocking back and forth once he gets close enough. "Looks like something hit you pretty hard... bet you'd like a friend in case it comes back!"
(And this is where the spoiler text would go, but since Ren wandered off on his own it might be a bit different unless the other people in the party realize Ren is missing when Hikaru says "Well, then. Someone ask the poor man if we can help!" and they walk into view and already see Ren halfway there or even already talking to the guy.)