Inside it is beautifully, perfectly old world. It doesn't appear to have been renovated much in the last, oh, fifty years. You are handed a key to a small cabin where you undress, wrapping a thin Turkish towel around yourself and stepping into wooden sandals, before heading into the inner sanctum: a series of domed steam rooms. In the main ablution room, a central circular marble platform is surrounded by a series of fountain-style basins. Here one steams, washes, is massaged.
My best hint is this: give yourself over to the experience and don't worry about modesty.
For guidance, you could read Lady Mary Wortley Montagu's description of visiting a hammam in the early 18th century.