# download from cpan and unpack, e.g. with
tar xvzf module-1.0.tar.gz
cd module-1.0.tar.gz
# read README and INSTALL, if available, they will tell you
# how to install the module; if the way is with make, you
# can "enhance" perl Makefile.PL with PREFIX=...
perl Makefile.PL PREFIX=/path/to/myhome/lib
make
make test
make install