The three male Cefeye obviously didn't like where this was going. They feared Vincent was going to snap their leader's neck if they didn't do anything to stop him.
Their foot took a step forward. They were planning to go in between the female Cefeye and Vincent and protect their leader. Right before their next step, they saw green light appear in both of Vincent's hands.
The three male Cefeye didn't feel any malice coming from Vincent, yet the light in his hands could mean an attack. As the urgent emergency heightened their senses, their noses twitched after catching an unusual scent.
The female Cefeye squeaked a couple of sounds, and the three male Cefeys suddenly became less hostile toward Vincent. Vincent guessed the refreshing feeling the balm has when applied to a wound caused the female Cefeye to understand he was trying to help.