Because Starlights (or VIXX's official fanclub) sure have, and it's this gesture below!
Whenever Ravi noticed a camera in his peripheral, he draws a star in midair with his finger, giving a mini shout out to VIXX fans or Starlights each time.
Fans whose hearts were seriously stolen by Ravi's sweet little gesture each time commented, "So warm, so cute, so loving...", "I only wait for the music show endings kekeke", "It's so fun to look for our Ravi drawing his star", "Master of drawing a star at the speed of light!", "The star is drawing a star for his starlights", "Even if the star is kinda deformed sometimes it's okay, I love them all", and more!
Sometimes though (as one Starlights mentioned above), Ravi doesn't always succeed in drawing the neat, 5-point star:
Aren't Ravi's stars adorable?