Let me add a humble suggestion as an SLF.
I've found on many occasions (most recently last week on a 757) the pilot seemed to have quite a lot to say on the PA, but his actual words were in fact all but inaudible due to the PA volume.
I don't know to what extent this is a a given based on the aircraft type, ambient noise, speaker location, etc. and to what extent it's based on distance from boom-mic-to-mouth or whatever - but for me as an SLF, a key part of appreciating the cockpit PA is whether I can actually hear what's being said.
So (especially if you're new to it) might it be worth asking cabin crew after a flight whether the volume level of your cockpit PAs was OK, whether they could hear them OK, or whether you should be speaking more loudly?