How did Jesus call Saint Peter?

Peter was introduced to Jesus by his brother Saint Andrew. We can read about this account in the Gospel of Matthew:

As he walked by the Sea of Galilee, he saw two brothers, Simon who is called Peter, and Andrew his brother, casting a net into the sea; for they were fishermen. And he said to them, “Follow me, and I will make you fishers of men.” Immediately they left their nets and followed him. -Matthew 4:18-20

Saint Andrew was the first disciple to be called by Jesus, Peter following after.