A computer processor determines a first language in which a message posted on a social network is composed, the message corresponds to a user of a social network. The computer processor compares the first language of the message to a set of one or more languages understood by the user of the social network. In response to the first language of the message failing to match one language of the set of one or more languages understood by the user, the computer processor prompts the user to confirm continued use of the first language, within the social network.