out of one s shell|out|shell Idiome
out of one's shell|out|shell
adv. phr.,
informal Out of one's bashfulness or silence; into friendly conversation.

Usually used after "come".
John wouldn't come out of his shell and talk to the boys and girls at the party. The other girls tried to draw Ella out of her shell, but without success. Antonym: IN ONE'S SHELL.
out of one's shell|out|shell
adv. phr.,
informal Out of one's bashfulness or silence; into affable conversation.

Usually acclimated afterwards "come".
John wouldn't appear out of his carapace and allocution to the boys and girls at the party. The added girls approved to draw Ella out of her shell, but after success. Antonym: IN ONE'S SHELL. Dictionary