come out of shell

come out of (one's) shell

To become more outgoing. Usually said of a shy or introverted person. Wow, Anna has really come out of her shell lately. I remember when she wouldn't even talk to anyone, and now she's likely to be voted "Most Talkative."
See also: come, of, out, shell

come out of one's shell

Fig. to become more friendly; to be more sociable. (Alludes to a shy turtle putting its head out of its shell.) Come out of your shell, Tom. Go out and make some friends.
See also: come, of, out, shell