Need to hold them every day really, even just for 5 minutes.. They also ideally need to be fed once a day, but once every other will do!
Lilo will eat everything you give her, so it's a case of how much you want to feed her.. Expect it to cost £20-£30 a month (£30 being max)..
They vary in cost; average from a pet shop is £60 for a baby, and anything up to £180 for an adult.. Direct from a breeder is cheaper.
They prefer to walk/run around, but will happily sit on you (hitch used to sit on my head!)..
They can smell, but have a tendency to lick you to get a proper idea of what you are.
Lilo has only ever bit me once, but that was when I was trying to split Hitch and Lilo up and was my fault
Hope that helps