Marks of submission
There are many different 'marks', physically, that define us in our own unique way - things, that we feel mark us as submissives. Some we've given ourselves and yet others are given to us by our Masters/Mistresses.
For me, I've done things for my 'inner slave' ; piercing my navel, piercing my nipples and even my tattoo on my lower back - to me; feel like 'slave things', right down to the thumb ring I wear.
What 'marks' you as sub to you? Is there any particular thing you do that makes you feel more 'slavelike'? (inquiring minds want to know!) hehe