When looking at a currency, it is a good idea to see who it performs overall. For example, if you are looking at the AUD/USD pair, it is a good idea to understand if the AUD is strong or weak. By looking at different currencies against the Aussie - you can get a good idea.
In this video, I look at AUD/PLN, AUD/HKD, and AUD/USD. I show that the AUD is strong against these exotics which also provides evidence of underlying strength against the USD which is a more often traded pair.
(Polish Zloty, Hong Kong Dollar, and of course US Dollar.)