# storing data
$s->param("name", "Sherzod");
# or
$s->param(-name=>"email", -value=>'sherzodr@cpan.org');
# retrieving data:
my $name = $s->param("name");
# or
my $email = $s->param(-name=>"email");
print qq~Hello <a href="mailto:$email">$name</a>~;