How to use forex for hedging?

[swanger]

Hi

I'm a noob in forex being equities and futures trader.

I would like to hedge my exposure to USD. My home currency is SGD.

If I have USD$25000 that i want to hedge should I buy USD.SGD 25000 or sell USD.SGD?

Alternatively would I be able to hedge using USD.JPY and JPY.SGD if my broker does not have USD.SGD?

Thanks