Tip 4: "Much too timid in bidding"
After 1 - 1 perhaps East can venture a takeout double? East has the perfect shape and E-W are but -1 in 3 for a terrific score.
North passed initially, but what can North do at her second turn? Partner bid clubs and whilst you cannot support clubs directly with A-x you can certainly double - negative - showing the other 2 suits and some values. South, of course, will bid clubs again and just maybe buy it in 3 for a great score!
If it goes Pass - Pass - ? and you are white, bid aggressively if you can. Here South made the optimum bid of 3 and so shut everyone out.
My tip to you: In part-score situations, be aggressive, use the multi-facetted double more often.