Will not hold hand with any guy, except the following - my boyfriend, my father, my grandfather, my brother (on extremely rare occasions), my dog, some extended relatives of the family (but not all, this has to be considered on a case by case basis)
On a friend basis, all physical contact is avoided, unless absolutely necessary like in cases where my friend shoves me and i want to retaliate
Other than that, hold hand means i think he's interested in me, and i also interested in him.