This question already has an answer here:
No, I am not talking about selfies.
This person misses no opportunity to be in each and every photo shoot at a gathering.
Last time, I remember, at a function we had a choice of getting her for a particular task or her sister in law. She hurried to get the task done (pretending she was very much interested in doing that). She in fact knew that the photographs would be taken and that was the actual reason that was hurrying.
Word for a person who is very much interested in having his photographs clicked?