Simon being tactile / self-soothing
most noticably, his repetitive circling motion with his thumb over his empty knife holster (which he often touches for reassurance in a kind of muscle-memory reaching for a weapon that isn't there)
then his light tracing of the map, brushing his fingers over it to situate himself, and just the delicate way he handles everything in general, like he's trying hard not to damage anything (he's very physical/visual, he also uses his hands when gesturing directions)
when he finds the Eden pendant he ties it around his wrist to keep it secure, but he also holds it enclosed in his palm. he keeps it tight in his fist under his thumb. part reverence part anchor to home
and when he's stressed he makes fists and fidgets with his hands / the pendant. he also bows his head to it in his hand like he's praying or hoping it'll bring him luck like a talisman
