Put it at the exact frame a confession lands, after the build-up shot and before the reaction cut. For a payoff sequence, follow it with a hallelujah chorus to mark the win, then cut straight to the other person's stunned reaction shot to close the bit.
關於此聲音
Ted, the talking teddy bear, says I love you in his gruff Boston-accented voice in a clip lasting just over one second. Delivered plainly, it feels oddly tender and funny at once, sweet if you mean it and sharply sarcastic if you do not. It comes from Ted, the 2012 comedy film directed by Seth MacFarlane, who also voices Ted.