The feeling of absolutely crushing an interview.
Had to prepare a 10 minute presentation and deliver that, and then 50 or so minutes of competency/situational stuff thereafter. Probably the most in depth interview I have done since looking for graduate job years and years ago.
Will wait and see whether I get offered the post now, hopefully I do but thankfully have a few options open to me after returning from down under, but moreover just enjoying the satisfaction of preparing well for something, and then it paying off in the situation.