Down conduct sign on the musical accent ( 1 , down, 2 left , 3 right ,4 up ). You may find the time signature is clear. My father taught me that when I was 3 years old.
Sometimes , the accompaniment rhythm may play as 3/4 1/8 1/8 ,1/2 1/2 , 1/2 1/2, 1/2 1/2 .