He took a picture of me. Was this a friendly gesture or something else?

i_be_grey_c
Today, after school, I was with my best friend(girl). We suddenly saw another friend (guy), and my crush! *YAY* So I decided to convince her to come with me and bug them. My crush then took out his phone out and took a picture of my friend (guy), without our noticing. I turned around to talk to a friend, and I just hear "Hey Grace"...? So I turned around thinking he was going to say something. What do I see? His phone pointing at me. He then proceeded to remove the phone, and smile. *EMBARRASSING* (The result? A picture of me turning around with an idiotic face.)
He took a picture of me. Was this a friendly gesture or something else?
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