"I picked them up and threw them. You could've seen that if you paid attention."

She won't give more of an explanation - not necessarily because she's being evasive, though that is there too, but mostly because she can't really explain it much better. In the end, you just reach out and grab something.

She picks up the gun and continues on to the pile of clothes, placing the gun on it and settling down on top. As full-sensory as her mask is, it doesn't come with actual loops, pockets, holsters or whatever to actually place things in. The illusion also very minorly overlaps with the fabric that she's seated on now, too little to really see it unless you know that you're looking for it.