Thanks Mark, i can find the part of the code that show the greeting but i get error on frontend !
<div class="o-media">
<div class="o-media__image">
<?php echo $lib->html('avatar.user', $lib->my, 'default', true, true, '', false); ?>
</div>
<div class="o-media__body t-text--left mod-es-dropdown-menu__body">
<span class="mod-es-dropdown-menu__name">
<?php echo JText::_('MOD_EASYSOCIAL_DROPDOWN_MENU_HI');?>, <b><?php echo $lib->my->getName();?></b></span> <i class="i-chevron i-chevron--down t-lg-ml--sm t-lg-mt--sm"></i>
</div>
</div>
i add this to a custom module,
i made some thing wrong !?