They are actually one of the easiest plants to look after, if you bear in mind that they are succulents so a large part of them is moisture, they need to be kept watered, although I tend to let the compost dry a bit before watering again, what I do is stand the pot in water halfway up the outside of the pot and leave for a while before taking it out again, but ordinary watering from the top does just as well.
I started with the tiniest sapling thing if an aloe vera and now from that one tiny thing I have about 15 huge plants which just keep sprouting baby ones!
I plant mine in the compost which is specifically designed for cactus/succulents, I give them just a small amount of water once a week and then every month I stand them in a tray of deep water for about 2 hours.
I have them on a south facing window sill.
They're pretty easy to keep alive so good luck but you won't need it : )
Do you know, I am well known for killing off plants?
A friend gave me one of these things because I'm prone to cutting myself and despite ignoring it completely it continues to thrive and keeps reproducing - even though I keep lopping bits off!
I just give it a watering when I think about it (which isn't very often) and it sits on a sunny windowsill in the kitchen.
Do let me know if you manage to annihilate it because I'm damned if I can!