In the WordPress backend, on the admin bar, there has always been the “Howdy” text that greets you and leads to your account info. It can be customized.

Place the following code anywhere in your child theme’s functions.php document.

// change the "howdy" text in the admin bar
function custom_howdy( $wp_admin_bar ) {
    $user_id = get_current_user_id();
    $current_user = wp_get_current_user();
    $profile_url = get_edit_profile_url( $user_id );

    if ( 0 != $user_id ) {
    /* add the "My Account" menu */
        $avatar = get_avatar( $user_id, 28 );
        $howdy = sprintf( __('Hello, %1$s'), $current_user->display_name );
        $class = empty( $avatar ) ? '' : 'with-avatar';

        $wp_admin_bar->add_menu(
            array(
                'id' => 'my-account',
                'parent' => 'top-secondary',
                'title' => $howdy . $avatar,
                'href' => $profile_url,
                'meta' => array(
                    'class' => $class,
                ),
            )
        );

    }
}
add_action( 'admin_bar_menu', 'custom_howdy', 11 );

The above changes the “Howdy” to “Hello” which feels more professional. But you can change the following line “Hello” (line 10 above) to be anything you want.

$howdy = sprintf( __('Hello, %1$s'), $current_user->display_name );