Girls, A guy got caught up in the moment of an achievement and did this?

In my circle of friends, one guy got promoted to manager at a young age (he's 25), and we had a get together to celebrate it. There were about 15 of us there. I like to be more relaxed in dressing, and I was wearing a jeans and a long sleeved crop top. A picture was being taken and he put his arm around my waist. It was unexpected, bit I liked that he found the confidence to do that. I like him, but I don't want to seem like a gold digger, should I just wait for him to ask me out?

Girls, A guy got caught up in the moment of an achievement and did this?
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