to notice, to sense, to feel
Educadamente, Tom fingió no notar que Mary había estado llorando.
Politely, Tom pretended not to notice that Mary had been crying.
Van a notar que no estamos allá.
They'll notice we're not there.
— Indagine su un cittadino al di sopra di ogni sospetto (1970)
Es por la mañana cuando podemos notar qué hermosa es la naturaleza.
It is in the morning that we can notice how beautiful nature is.
Peter podía notar que ella estaba aburrida.
Peter could tell she was bored.