Walk into a class in session

You decide it would be a very interesting experience to use your Sapphire on a class in session. You take a look at the map to find a good option, then make your way to one of the larger buildings.

As you enter the building, a security guard starts to approach you, but a quick I belong here is enough to get him off your back. You keep that trick in mind as you walk through the halls, peeking into classrooms like you're window shopping. Eventually, you find a class that looks promising and open the door.

The class inside is relatively small, with only a little over 20 or so students, but you chose this class specifically for two reasons. The first is that there are slightly more female students than male ones, and none of them were unattractive to you. The other reason is the professor. She was a woman that looks to be in her late 20s or early 30s, with brown hair that hung down loose to rest just above her shoulders. She was also very attractive, with nice hips, a feminine waist, and a large pair of boobs hidden just under a buttoned-up white blouse.

Upon you entering, the professor stops her lecture and looks at you, as do most of her students. She raises a brow and asks, "Can I help you?"

With all eyes on you and thinking quick, you ask, "Um, is this Intro to Physics with Ms... shoot, can't remember the name."

"No, this is Intro to Psychology, and it's Professor Martell, not Miss," she corrects, stressing the title, "You're not even in the right building. The STEM building is two to the left as you exit through the front door."

"Oh, sorry," you say as if you made a mistake. Really though, the fact that you were testing the limits of a mind controlling amulet in a psychology class of all places was just too appropriate for you to want to be anywhere else at the moment.

After a few seconds of awkward silence, the professor eyes you suspiciously and asks, "Is there something else you need from me?"

You think about how you want to take this. You could easily do the same trick with the guard to make the class think you're another student or a teacher's assistant, though doing that to the whole class at once would probably push the limits of what the Sapphire can do to so many people at once with a single command. Still, being an 'official' part of the class will give you the access you need to stick around and involve yourself in whatever fun you cook up. Similarly, you could make it so that no one here will notice your presence in the room at all, allowing you to more easily manipulate the class behind the scenes without the risk of drawing attention to yourself. And of course, there's all sorts of other things you might be able to do as well, if you were willing to put the work into setting it up.

All you know is that the longer you take to make a decision, the more awkward you standing there is going to get.