Fake your idle time in tik
Thanks to divaD for providing this information

Add the following to your tikrc (in ~/.tik/tikrc)

catch {
toc_set_idle $::NSCREENNAME 1000000
set ::TIK(IDLE,sent) 1
}

The 1000000 is your preffered idle time, I believe.

Using tcpdfilter to convert ascii code to readable ascii characters on your console.

tcpdump -i eth0 -s 65536 -x -l port 80 | tcpdfilter -x -d

The above tells tcpdump to listen to all traffic to and from port 80 on any host.
-x on tcpdfilter tells it to show hex as well as ascii representation
-d will provide interpretation of header data