]) Geordie Smiley from STTNG 
:)3 Counselor Troi smiley (the 3 are her boobs). 

:{} Riker Smiley (with moustache and beard) 

8{0} Riker Smiley (observing Troi's 3's) 

:| Data Smiley (data doesn't smile because he has no emotions
                   -- he also doesn't frown) 

(:-) Picard Smiley (notice there's no hair) 

{{{ : } Worf Smiley (note wrinkled forehead and smile) 

:0 Wesley smiley (screaming as he finally gets killed off) 

%( =Bones' worst nightmare, a transporter disaster