Hi Ricardo,
Here is the fix of Page title share problem:
function poka_social_share()
{
global $post;
$permalink = esc_url(get_permalink($post->ID));
$title = get_the_title();
$title_encoded = rawurlencode($title);
?>
<ul class="social-icons">
<li>
<a class="icon poka-facebook icon-btn icon-btn--gray jsSocialShareIcon" href="http://www.facebook.com/sharer.php?u=<?php echo esc_url($permalink); ?>" title="<?php esc_html_e('Share on Facebook', 'poka'); ?>" data-width="520" data-height="350" rel="nofollow"></a>
</li>
<li>
<a class="icon poka-twitter icon-btn icon-btn--gray jsSocialShareIcon" href="http://twitter.com/share?text=<?php echo esc_attr($title_encoded); ?>&url=<?php echo esc_url($permalink); ?>" data-width="520" data-height="350" title="<?php esc_html_e('Share on Twitter', 'poka'); ?>" rel="nofollow">
</a>
</li>
<li>
<a class="icon poka-envelope icon-btn icon-btn--gray" href="mailto:?subject=<?php echo rawurlencode(__('I wanted you to see this site', 'poka')); ?>&body=<?php echo rawurlencode(__('Check out this site:', 'poka')); ?> <?php echo esc_url($permalink); ?>" data-width="520" data-height="350" title="<?php esc_html_e('Share by email', 'poka'); ?>" rel="nofollow">
</a>
</li>
</ul>
<?php
}
