10- Curt
18- Owen
20- both/either of them
10- posture/physicality/movement
to me curt has pretty good posture but he negates this by CONSTANTLY fidgeting and being generally unable to sit still. he uses his hands a lot (fixing his hair, messing around with whatever he's holding, putting them in his pockets and taking them out and putting them in and taking them out and p) and is always moving around in some way whether it be bouncing his leg or swaying in place or drumming on his knees. the guy just has a lot of energy okay. also a lot of the time his movements are very exaggeratedly masculine if that makes sense? like he's very in-your-face macho with his gestures. but at the same time he talks with his hands in a way that only a gay person could
18- beloved or important items or property
a fancy engraved lighter curt got him after a mission went particularly well, and his mother's wedding ring. he's kept it safe since he was eleven. sometimes he imagines giving it to curt.
20- love language/way they show affection
considering the time period and level of emotional repression we're talking here, obviously not through actually saying "i love you." they both show it by looking out for each other on missions, but curt especially likes acts of service; cooking when he can, taking long night shifts on stakeouts to let owen sleep, not letting him even think about tending to wounds himself. owen tries his best to show how much he loves and appreciates curt through words but he's not very good at it. so he mostly sticks to watching his back, entertaining his shenanigans on occasion and a lot of words that tend to come out as praise and compliments and warnings and the occasional muddled and nervous confession of how much curt means to him as a partner and more. but they always mean "i love you"