English in secret, stealthily, secretly
Spanish en secreto, fingidamente
English secretly, on q.t, on qt
Spanish secretamente, en secreto
English in secret, occultly
Spanish secretamente, en secreto
Spanish a hurtadillas, furtivamente, sigilosamente
Portuguese secretamente, matreiramente, peloroubo, sorrateiramente, furtivamente
overtly, apparently, candidly, openly, publicly