Bert is a cheerful, eccentric bus driver from New York. After retiring to Pennsylvania, he got bored and decided to start driving a few hours a week to help fill his time. During free time on his bus route, he tells jokes and sings to his audience in an effort to improve their mood. He also tells Rachel and Beth about how tolerance, astute observation skills, and creativity are key to succeeding both in unpredictable jobs like his and in life more generally. Furthermore, he demonstrates how combining these traits with a lighthearted attitude can help people overcome obstacles. Rachel applies his wisdom when confronting her own romantic and family issues.