Amuse and astound your friends by tapping on things, seemingly at random! Perhaps you might even learn the dying art of Morse code, thus enabling you to communicate in any place with walls, pipes, lighting systems, or antiquated telegraph equipment.

A . _
B _ . . .
C _ . _ .
D _ . .
E .
F . . _ .
G _ _ .
H . . . .
I . .
J . _ _ _
K _ . _
L . _ . .
M _ _

.| . _ . _ . _
,| _ _ . . _ _
?| . . _ _ . .

N _ .
O _ _ _
P . _ _ .
Q _ _ . _
R . _ .
S . . .
T _
U . . _
V . . . _
W . _ _
X _ . . _
Y _ . _ _
Z _ _ . .

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