Several of Mary's friends are going on the senior ski trip. They ask Mary to bring a bottle of Vodka. They're bringing liquor as well. Mary wants to be accepted by her friends. If she says "no" what will they think? Despite the negative peer pressure, she tells her friends that she's not bringing the bottle of Vodka. To Mary's surprise , two other friends say they think bringing liquor on the trip is a bad idea as well. What Character trait has Mary shown?