Seidl became an important mentor to Herbert and took a particular interest in fostering Herbert's skills as a conductor. Upon arriving in New York, Herbert and Förster became active members of New York's German music community, socializing and networking at cafes such as Luchow's. At these cafes, Herbert handed out business cards saying, "solo cellist from the Royal Orchestra of his Majesty, the King of Wurtemberg. Instructor in cello, vocal music and harmony." Herbert hoped to pick up extra income teaching, since he was earning only $40 to $50 a week as a cellist in the Met's orchestra.