Using the customer object on viewing products

[kolega]

{noobalert}
I would like to use $customer object (need to check if member of group), but the object $customer is not initiated on page. I know it can be really quickly initialized, but I have not found an example (do not need the whole checking if somebody is logged in). Just the example
{/noobalert}

Prestashop 1.6.0.*

Edited June 2, 2014 by kolega (see edit history)

[vekia]

the question is:

where you want to use it?