When we put off obedience we usually wind up talking ourselves out of it; convincing ourselves that it wasn't really God speaking to us in the first place.
I'm guilty of this; hesitant or afraid to just act on "emotion," thinking presumptuously that it was God speaking to me.
I guess though that it would be better to err on the side of over-reacting to what we feel is God's voice than under-reacting, wouldn't it?
Matthew 4:20, 22
At once they left their nets... At once they left the boat and their father... they obeyed immediately.
Err on the side of generosity, self-sacrifice, words of encouragement, displays of affection, dying to self, humbling myself... yet remember that it is better to obey than to sacrifice. We can't think that our sacrifices will win favor or help pay for forgiveness or earn salvation.
Hearing God's voice - discerning His prompts, commands, requests - obeying in faith without over-analyzing. Leaving my mistakes and misunderstandings at His feet. Leaving the results to Him.
Remaining humble and teachable.