"So I rely on word of mouth to know what's going on."

Nor do they advertise, relying mainly on word of mouth.

Some such churches advertise but many do not, relying instead on word of mouth.

The thing is I suppose they rely on word of mouth.

Instead, he decided to come clean, then rely on word of mouth.

As a result, he seldom gets referrals, which forces him to rely on word of mouth.

The shows were sold out despite little advertising and largely relying on word of mouth.

"The first 88 years, we relied on word of mouth," Andrew said.

He does not advertise and relies only on word of mouth for new clients.

The club, which began in April 1988, does not advertise, relying on word of mouth to get new members.