the ML and FL sitting next to each other and falling asleep
delicious food
the ML complaining about the short length of the FL's skirt once their romance has started
FL gets caught mid fall by her love interest and they have a moment complete with music and different camera angles
Umbrellas under the rain
One falls asleep sitting up (at a desk, for instance), and the other drapes a coat over the sleeper's shoulders.
AMNESIA
historical dramas: a person of noble birth pretending to be someone more common
falling and hurting their knee
a shower scene showing off the male lead's upper body physique (but often stopping at his jaw line)
cliches
historical (mostly idol dramas): cross-dressing
Hardhearted Boy leads
cheesy slow mo