Fisherman's Friends are also useful for faking tears. Simply suck on a lozenge (which, incidentally, is a word that rhymes with "orange", contrary to the popular belief that Nothing Rhymes With Orange) for a couple of minutes, cup your hands over your face to direct your breath into your eyes, and exhale.
Caution: this may hurt a bit.
Disclaimer: if it does, that's your problem not mine.