Obviously using a toothpick!
Table manners! Still during the medieval times, toothpicking is never allowed to be done in public or with an audience. It is customary that you do it in private becasue it is highly gross. But Filipino men today have disregarded that. Similar with picking their noses, they do anytime and anywhere.
Finally, the most disgusting and the most annoying is this public scratching! We understand that sometimes “it” itches. But men seems to care less about their surroundings when “it” itches because they just scratch it right there and then. It is really disgusting and disrespectful to anybody who will accidnetally see it.