Here the corrected code, shich should make it clear:

#include <stdio.h>

int main(void)
{
char a;

printf("Pausing... Please enter any letter or number > ");
scanf("%c", &a);
printf("You entered %c\n", a);

if (getchar() == '\n')
printf("bingo, again!\n");

printf("Pausing... Please enter any letter or number > ");
scanf("%c", &a);
printf("You entered %c\n", a);

return 0;
}

To pint Newline to stdout, it should be "\n".
There is a newline in stdin, so second scanf
just reads it.