Ok so instead of saying what you suggested, I said this instead.
Haha [HB] not everybody can pull off fluorescent green but it'd be nice to catch up and hang out with someone interesting. I mean, you are interesting right?
No response for a whole day, so I decided to go a different route. I asked a wingman to comment on a photo she had commented on (before I saw her at the mall) of a concert I am planning to attend. Everything the wing said I asked him to say.
These are the comments on the photo:
[HB] bought my tickets the morning they went on sale! this means I'll see you there

Wednesday at 2:30am · Unlike · 1
[Wing] who are you going with?
21 hours ago · Like
[Me] Whoever wants to shake their ass til the break of dawn!!! Haha You and [Wings Girlfriend] should go too!
17 hours ago · Like
[Wing] Yeah and you should take that girl above me^
17 hours ago · Like
[Me] who [HB]? I'm not sure if she's prepared to party like a rock star just yet

17 hours ago · Like
(i knew this cocky-funny, light on the cocky, would tease her and tempt her to qualify herself; sure enough...)
[HB] Um is that an invite to party or a challenge?! Hmmm either way I'll take it!

you just need to say hi next time you see me in person and not be shy!
17 hours ago · Like
So there you have it. Mission is a go. How should I proceed?