to choose a spouse

to pick out the bones in a fish

to select

to fix a date (for an event); to select an auspicious date

at the right time; when appropriate

to pick the edible part of vegetables

to be picky (food)

impossible to separate; impossible to disentangle; cannot take time out

to pick an auspicious day

to choose what is good and hold fast to it (idiom)

to choose the right course and follow it (idiom)

lit. carefully setting an auspicious date does not beat seizing an opportunity (idiom); fig. seize the occasion