I got three girls instas... now what?

Met these girls at my museum job. Was under the impression it was one sided so thought i would see one more time and walked past them to see if they would say anything. One asked for my fav part. I told them and they kept asking qs.. decided to get alll of their info.. messaged them Saying nice to meet you. probably bad opener? Help
I got three girls instas... now what?
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