Four Girls entered a BRT Bus full of Male Engineers. Since there was no more place available, they sat on each of the Boys' laps.
After ten minutes. 1ST GIRL: Are you an Electronics and Communication Engineer?
1ST BOY: How did you know?
1ST GIRL: Your tower is communicating with my unreachable area.
2ND GIRL: Are you an IT Engineer?
2ND BOY: How did you know?