if you want to know how to put hearts shapes in your twitter, you can use the html code for hearts, there are two ways, the regular html and the numerical way

you can add this as an example:

HEARTS CODE:
♥ how to put hearts in your twitter: http://www.wallpaperama.com


you can use the number of the hearts symbol:

NUMERICAL HEARTS CODE:
♥ how to put hearts in your twitter: http://www.wallpaperama.com


try it, it works