Change contact methods

functions.php

add_filter( 'user_contactmethods', 'change_contactmethods' );
/**
 * Customize contact methods.
 * 
 * @since 1.0.0
 * 
 * @param  array $contactmethods Existing contact fields.
 * @return array Updated contact fields.
 */
function change_contactmethods( $contactmethods ) {
	
	// Add Twitter
	if ( ! isset( $contactmethods['twitter'] ) ) {
		$contactmethods['twitter'] = 'Twitter';
	}
	
	// Add Facebook
	if ( ! isset( $contactmethods['facebook'] ) ) {
		$contactmethods['facebook'] = 'Facebook';
	}
	
	// Add Google+
	if ( ! isset( $contactmethods['googleplus'] ) ) {
		$contactmethods['googleplus'] = 'Google+';
	}
	
	return $contactmethods;
	
}