All humans need attention- we are a social animal afterall.
The only thing to watch out for is how far would you go to get it- some ppl believing they don't deserve it/wouldn't get it otherwise are prepared to go to extremes and thus potentially hurting themselves/others.
Getting a tattoo just to get attention? Not that great, but I've seen worse.
Getting a tattoo you want and then show it to others? Pretty much normal, most tats are a bit "attention grabbers" anyway.

BTW, right over your heart? Seriously? What about your breast/nipple?