Generally
Those who look around without looking directly...
always change their minds.
Those who speak and their eyes are closed... deceived,
while... Those who blink when they smile... are liars.
The person who calls every individual
"the best friend"
is the first person to abandon you when needed.
People with crooked, irregularly growing front teeth, as well as those with sparsely growing front teeth....
are not trustworthy.
Those who always lower their heads before speaking are deceitful.