Renesmee noticed the stranger enter the field she had inhabited. She noticed the extreme caution he used. She didn't blame him, he wouldn't know.
"Thank you," she said. She wanted to explain herself but she was very thirsty. She could talk later. Or not talk at all.
She leapt over to the bag he had left and sat down, delicately taking one out and drinking it as though it could have been a soda. She was particularly careful to do it in extreme control. As she had done for so many before, she wanted to show this man she was in control.