For us confidence has come with age and good experiences. Going for walks means he gets chicken or some other delicious treat. Same thing with meeting new people or places. I also agree that training has helped. He is eager to try most new things because he associated these things with something yummy. You can use a DAP spray or Neroli Hydosol to help calm any nervousness and help them be more confident.(the Neroli also smells nice

) I am sure she will build more confidence as she gets older, she is still a baby