I hope this isnt the wrong way to do it but I may have found a solution.
I click “editor” under the theme tab and then selected “header.php” and added
target="_blank"
to each of my social icons. For example:
<a class="sociallink TwitterLink" href="<?php echo esc_url('https://twitter.com/' . get_theme_mod( 'twitter_username' ));?>" rel="me">
becomes:
<a class="sociallink TwitterLink" href="<?php echo esc_url('https://twitter.com/' . get_theme_mod( 'twitter_username' ));?>" target="_blank" rel="me">
