You are looking at a command called pet

pet {object}

You can pet a cat or any other friendly object.

pet the huge dragon

Some objects will react to being petted.

Similar commands:
read the command called pat
read the command called use
read the command called catch
read the command called throw


scripting example
if target of pets then purrr;
##purrr:
$sound = (purrs,growls,numbles something,blinks,laughs);
print "[$actor] silently $sound";
Code