cperl-tips is a variable defined in `cperl-mode.el'.
Its value is

Get maybe newer version of this package from
Subdirectory `cperl-mode' may contain yet newer development releases and/or
patches to related files.

For best results apply to an older Emacs the patches from
(this upgrades syntax-parsing abilities of Emacsen v19.34 and
v20.2 up to the level of Emacs v20.3 - a must for a good Perl
mode.) As of beginning of 2003, XEmacs may provide a similar ability.

Get support packages choose-color.el (or font-lock-extra.el before
19.30), imenu-go.el from the same place. (Look for other files there
too... ;-). Get a patch for imenu.el in 19.29. Note that for 19.30 and
later you should use choose-color.el *instead* of font-lock-extra.el
(and you will not get smart highlighting in C :-().

Note that to enable Compile choices in the menu you need to install

If your Emacs does not default to `cperl-mode' on Perl files, and you
want it to: put the following into your .emacs file:

(defalias 'perl-mode 'cperl-mode)

Get perl5-info from
Also, one can generate a newer documentation running `pod2texi' converter

If you use imenu-go, run imenu on perl5-info buffer (you can do it
from Perl menu). If many files are related, generate TAGS files from
Tools/Tags submenu in Perl menu.

If some class structure is too complicated, use Tools/Hierarchy-view
from Perl menu, or hierarchic view of imenu. The second one uses the
current buffer only, the first one requires generation of TAGS from
Perl/Tools/Tags menu beforehand.

Run Perl/Tools/Insert-spaces-if-needed to fix your lazy typing.

Switch auto-help on/off with Perl/Tools/Auto-help.

Though with contemporary Emaxen CPerl mode should maintain the correct
parsing of Perl even when editing, sometimes it may be lost. Fix this by

M-x normal-mode

In cases of more severe confusion sometimes it is helpful to do

M-x load-library cperl-mode RET
M-x normal-mode

Before reporting (non-)problems look in the problem section of online
micro-docs on what I know about CPerl problems.