Susan supposed that if she had to run into any of the Slytherins, she would rather it be Daphne. She didn't particularly like any of them, but she was probably less likely to cause any trouble, then Pansy, for instance. And Merlin knows, Susan hated running into Ambrose. Though, she would rather she didn't run into anyone while she was working on this, she didn't need any suspicion thrown on her or the DA because of her.
"I was aware of the fact," she replied with a small nod. "I was on my way back just now, I got distracted by that painting. It's quite nice, don't you think?" There was no way Daphne could know what she was up to, but she hoped to throw her off a bit by mentioning it. Because, honestly, who didn't take some time to look at the artwork every now and then?