preflop:
early position - raise 4x blinds , if im reraised ill either reraise or fold depending
middle position - facing a raise, i would just call because i want to play a multi way pot here. Limped to me, ill raise 4x-6x blinds.
late position - a few limpers, ill raise 6x blinds - if its raised to me, ill usually reraise but it all depends on size of raise and other information i have- many limpers , 6x-8x blinds

post flop it varies so much that its kind of tough to explain how i play it.