Pets your head gently... Relax it is simple...There is no difference between a sub and a pet or a slave and a pet other than the sub/slave bit... A pet is something needy that the Dom/Master cares for and looks after... Much the same way you do any other pet... My subbie snowflake likes to be treated like a kitten so I pet her head and scratch behind her ears... Give her the odd rubber dildo to play with and sometimes a ben wah ball to roll around the floor to be chased...
My opion... Hope it helps...