Tafas: Here you may drink...
[Lawrence nods and takes out his canteen to drink water]
Tafas: One cup.
[pointing the tincup]
T.E. Lawrence: [Lawrence pours in some water] You do not drink?
Tafas: No.
[Tafas shakes his head like saying no]
T.E. Lawrence: I'll drink when you do.
Tafas: I am *Bedu*.
[Lawrence pours back the water in the tincup to canteen]