Nobody should buy the dip at the moment I'd say. too uncertain. But folk must make their own choices I suppose.
There is no perfect point, I would just say be aware of where the rough boundaries are to price movement. So this is my current view of the pricing and previous trends extrapolated:
The blue line is 8 day moving average and I think we are into a positive trend when we trade above that price, about 6350. Clearly there is support below even if the dip took us lower it was not especially substantial in that regard.