Hide blank "optional" custom fields from front end listing page?

Hi all,

I have setup social media custom fields – fb, twiiter, instagram, yt.
Each custom field is set to optional, in case a listing owner doesn’t have an instagram, or twitter etc…

If they leave one or two blank, the listing page displays these custom field titles anyway? refer to pic

Q – is there a way to hide a custom field from the listing page, that is left blank?

Hope I explained my situation properly lol

Thanks in advance.

Chris