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As #Gyeommi said that hand gestures are playing important part on #RunOn, and both siwan-sekyung seems to love playing with each other's hands, so here's a mini(?) thread where them hand actions speak louder than words
The very first (unofficial) wrist-grabbing...
Her reaching out to him first :)
Another (unofficial) wrist-grabbing...
Not really hand-related but this scene where they treated each other.. 
Popular Mijoo
"do you perhaps like me?"
The infamous ending of eps 6
"you came to watch the movie with me, didn't you?"
"please hold me"
Oooh, I want to added a great thread from @letsmakeitforev about the hand gestures here https://twitter.com/letsmakeitforev/status/1349200004154597376?s=19
https://twitter.com/letsmakeitforev/status/1349200004154597376?s=19
Some clips below aren't really plot-related, but well.. let's just look at them hands, ok? 
Ai yeppo~ 
Touchy touchyyy
The legendary most rewatched w korea photoshoot
Not sure if Sekyung was quoting Kim Tan's line casually or intentionally 
Thanks to Sekyung, now we know Siwan doesn't have dead skins on his fingers!
Okay-!
