>>14322533She looks as if she's about to..
1. Bite her third eye which would be horrible and could only be described as self-lobotomy driven by suicidal motive.
2. Caress it with her lips which would be quite sensual and could be seen as an act of foreplay, which the mystery of "where exactly is her second hand on this picture" does not help even a little.
3. Just hold it in her palm, feeling it's pulse in synchronization with the one coarsing through her fingers, an act of pondering upon youkai mortality.
4. Posing to a painting (while also possibly forgetting herself in the moment).