Why would they ask for photos with me?

So a few days ago my brother and his now fiancé had an engagement party. All their closest friends and family were invited and by the end of the night, many people were at least a little drunk. My mom had asked me to be a kind of photographer for the party so I was mostly busy taking photos instead of drinking. When I passed by two guys who were friends of my brother, they each asked for a personal photo with me taken on my camera. I said yes but it sort of confused me since I’m not the one who just got engaged and most people wanted photos with the soon to be bride and groom (AKA my brother and his new fiancé). Why would they want a photo with me?

Also, side note, one of them kept coming up to me throughout the party and even joined me in the living room towards the end and sat with me once I mentioned I was watching my favorite show. By then I had changed out of my nice clothes and into my pjs. Also at the beginning of the party he asked me if I wanted to split a mango with him and tried to cut it while looking at me and not the mango? I don't know the whole thing kinda confused me.

Updates
1 y
I added him on Snapchat but he never added me back so I don’t think he likes me. Let me know what you guys think though
Updates
1 y
Actually he did end up adding me, I was just impatient lol
Why would they ask for photos with me?
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