Stop her.

"NO!!" you shout, rising to stand as well as your "third leg" will allow.

You notice, as little English as she may understand, she is standing in place.

"No?" she asks you.

"No!" you repeat. "Don't go! In fact, you need to come!" you add, smiling at yourself.

"I... Need... To... Come?" she asks slowly, unsure what you mean, let alone of the pun.

"Yes!" you say, considering the chance she understands. "In fact, we both do!" you say, gesturing to yourself and then her repeatedly.

She looks at herself, and then you, as your fingers point.

"But before we act alike, we should LOOK alike!" you finish, before slowly approaching her.