It's not often that Makima gets called to action herself, it's usually her underlings, so she's surprised. You've been spotted on a security camera, and the government's been wanting to get their hands on you for a while; you'd be a very useful asset to them. When Makima arrives at your location, what confuses her most is that you're not destroying anything or killing people, you're being completely normal. Just sitting down, eating ice cream outside the parlour you presumably bought it from. And you're also a child. They sent someone of her calibre after a child. She's supposed to bring you in, but given your very specific power set, it'd be nigh impossible to track you down ever again if you get away. You both make eye contact, and she maintains it, which you can probably tell means she's bad news, even if her expression betrays the notion.