How to read an ex's body language<br>Study their smile. A genuine smile is a good indicator that they are happy to see you. When there is a " eye twinkle " involved, this may be a smile in which the whole face, even their eyes, are engaged with you.
An ex's smile is always deceitful 
( z1 deceitful :domain ( z2 smile :ARG0 ( z3 person :ARG0-of ( z4 have-rel-role :ARG2 ( z5 significant-other :time ( z6 ex ) ) ) ) ) :time ( z7 always ) )