Bottom line is she had to know more. Both about Ryan and the whole Glooze situation. And what better way to do so than go undercover. Her Dad probably would have already done so and instead of stealing a vial just disguised himself as something in the drug bag and get carried along. Robin had never been good at that kind of stuff. Sure, turning into an innocuous object and absorbing into something was easy enough. She'd done that hundreds of times as far back as she can remember, playing with Dad. But she'd also never been as goo at it as him. Sooner or later she always got restless, unable to really put herself in that zen-like state of mind of just being something. So her approach would have to be more straight-forward. Ryan knew she was a shapeshifter, of course, but she'd just have to accept that risk and trust in her ability to work around it.
So she's taller than she normally is, skinny to the point of not-quite-eating-enough and walking with a kind of defiant anger in her step. After participating in the
And so she's wandering the shadier parts of town, on the look-out for people hawking Glooze.