checking "su" environment

Hi, I need to check out what the environment would be expected to look like if I actually logged in as a root.After THOROUGH STUDY of 'man' I think the command should be:
"su - ".But according to 'man' this is the case if the login shell is Bourne shell (man reads :.. /usr/bin/sh..) or an empty string in the specific user's password file entry.My login shell is csh so when I run this cmd it asks me for password.
Do I have the command right? What is the same cmd for csh?
Thanks in advance.
P.S.
In response to guggach'es accusations: I wish I were.

su always will ask you for a passwd as long you are not the boss.
su [username] just change the usr-id
su - [username] does the same but the new shell inherit the environ settings
of that user, sourcing the appropriate .profile, .login and .??rc, according
to what's defined in /etc/passwd

?????
to make alias in ksh, put in ~/.kshrc
alias pollo=palla
in csh, put in ~/.cshrc
alias pollo palla
if you need args
alias pollo 'palla \!*'
this will change: pollo aa bb cc
in palla aa bb cc
PS: csh (on cmd line) is my preferred tool, as script langauge a c??p