Joy is to catch a wink!
(Pic taken in Taiping, Perak)
Under what situation do you usually catch a wink? During a hot, humid day, while watching television or when in class, listening to your teacher talk? If you doze off easily during the day, most probably, you are not having enough sleep. Check out your social life then - Have you been out late, enjoying some beers with your friends or watching a late night show?