At the moment I would be expecting a corrective trend to the downside, later a signal to enter long ... the risk would be place at the point where the trading idea is invalidated.
Regarding the green lines those are areas where supply could be found, therefore those levels could be clasified as preliminar resistances
Be aware that any trading decision must be based on a well defined trading plan and the risk tolerance of each trader.
For furhter details in the bigger picture of GOLD you can see the related idea.