The short answer is that I wish that the person had shared the photo. I think a big part of the role of public figures is to make visible these relationships, to build those relationships and to normalize things that might be unfamiliar to people who are involved.
Just last week I was talking to one of our bishops, who said he's gotten to know the local rabbi and imam because they've attended so many vigils together. They realized at one point that the only effective way to prevent any further need for vigils was to have ongoing relationships where they were not strangers to one another and where it wasn't an intimidating prospect. Sharing your presence in some of these places is effective, as is creating opportunity for people to build relationships with one another. Maybe public figures can be the meeting point. Rather than compelling people to go into a situation that they may not be comfortable with, create opportunities for people to be in a neutral space. Get to know one another so that it's not about an “other” person over there; it's about somebody who is right in front of you and with whom you can relate.