Tattoos are one of the forms of non-verbal communication just like engagement rings. Without speaking to you, a person can understand if you are engaged by seeing your ring. Similarly, without speaking to you, a person can gather an impression of the type of person you are by looking at your tattoo.
A tattoo is a permanent mark on your body that you have chosen for yourself. The tattoo that you have chosen is certainly based on your thought process and the person you are.

Tattoos are of various kinds. There are tattoos that convey about the toughness and strength of a person. Then, there are tattoos that convey about the emotions of a person. There are also tattoos that can tell you how creative the person is. Therefore, tattoos are definitely a form of non-verbal communication as it tells you something about the person. Your tattoo can draw people towards you or repel them from you.
Some people also get curious about your tattoo and want to know why you have opted for it. Tattoos definitely draw plenty of attention. If you have a tattoo, you must have noticed people looking at it, trying to decipher the kind of person you are.
Therefore, before getting a tattoo, choose it wisely as it is going to be a part of your identity and define you.
Yes tattoos are form of non verbal communication that represents a lot about the person who has the tattoo. Any person who plans to get a tattoo would always want the tattoo be something that depicts his personality or love and passion for anything that he/she likes. Thus tattoo is the non verbal form of introduction of that particular person.