I asked for help earlier about this; met HB9 and her friend but due to circumstances, couldn't #-close. Everyone said I should just talk to my friend so I did.. and he gave me her number!

I'm sure I was getting IOIs when we hung out, but we only met once and she has no idea that I have her number. How should I break the phone-ice? I know she's planning to hang out and drink with her friends on Christmas, and I would like to be a part of that..