Waiting for a hiring manager to call back? If she promises to get back to you, ask when you can expect her call. If you don’t hear from her by that time, call and check up. It’s usually safer to leave a message directly in her voice mail than to speak with her aide. If another 48 hours pass without a return call, send e-mail and perhaps a fax. By trying a few different communication channels to reach her, you can follow up by appearing resourceful, not desperate.