Conversation so far:
Did Willie Mays play for the New York Giants?
Willie Mays played for the New York Giants from 1951 to 1957.
What happened when Willie Mays began his career for it to be a sour note?
Mays began his major league career on a sour note, with no hits in his first 12 at bats.

Question: What did he do after that?
Self-contained rewrite: What did Willie Mays do after starting his career with no hits in his first 12 at bat?