Put the alt and title attributes in your img tag:
Code:
<img src="http://img02.picoodle.com/img/img02/3/1/22/f_rinoaundersm_4230fc6.jpg" alt="Welcome to Eyes on FF!" title="Welcome to Eyes on FF!" />
Which produces:
<img src="http://img02.picoodle.com/img/img02/3/1/22/f_rinoaundersm_4230fc6.jpg" alt="Welcome to Eyes on FF!" title="Welcome to Eyes on FF!" />