The act of perving, usually associated with
dirty old men in
thick rimmed spectacles, is the term used to encompass the many forms of
lechery that exist, whereby the
sexually gratifying characteristics of one person are appreciated by another.
Often carried out in pubs by groups of single blokes, and abundant in student bars where young female talent is plentiful, the males generally discuss amongst themselves the fine physiques of the ladies.
Although often harmless fun, care must be taken not to let the target realise they are being studied, as this often results in a harsh slap and much verbal abuse. At which point you move to another pub.