Halacha Yomi(m) 42, 43, 44-

1)One must have in mind, when he puts on Talit Gadol- Talit Katan also(Od Yosef Hai, Bereshit 1).

2)If someone's Talit Gadol fell off, if he had the intention of putting it back on- he doesn't have to bless again, but if he didn't- then he has to bless again (Sham 3).

3)When one puts on Talit Gadol, they should kiss all the strings together(Sham 5).