Sub Articulo 19.0

\verb|\smile| and \verb|\frown| (math mode) produce a smiling resp. frowning "paren".
The wasysym package offers \verb|\smiley| and \verb|\frownie| for smiling resp.
frowning faces.
Have a look at 
\verb|http://www.fi.infn.it/pub/tex/doc/html/latex_21.html|
Or just \verb+;-)+ or \verb|;+}|