How to redirect(pipe) a log file to console?

How to redirect(pipe) a log file to console?

I have a log file, which can only be appended to. I want to pipe this log
file to console, so that once new data comes to the log file, the console
also reflects the new piece of data. When there is no data to be appended,
the console should block there waiting for updates.
It's like a proxy server, redirecting file updates to console.
How to achieve this using bash?
Thank you.