She knows her stuff and is always willing to help a soul in need. She's bubbly and friendly, two surprisingly good qualities to find in a TA. She's just amazing. I personally like how she answers your question with another question and makes it seem like you are brilliant and were thinking it all along. "Hey, Mary, why do baboons have babies during the dry season." Response: "Well, they want to make sure their kids' weaning corresponds with the wet season, don't they???" Student's head nods rapidly and Mary says, "exactly!"