for first tattoo make sure you go to a good place , make sure they know what they are doing . Think along time befor what you want and where you want it and have a discution with the artist about where you can put it and colors . Skin body is not like a flat pice of paper . If they can get you in the same day as you come in its abit shit , good ppl are usualy bussy afew weeks in advance
Since its your first maybe not put it in a place where you cant cover it ? , seen many kids get face / hand tattoos for their first ones . makes you go wtf ... Anyways , you will know pretty much when the needle hits if you will get more tattoos or not