The act of handing something over directly to someone by hand (personal delivery).
記念品は当日、本人に手渡しでお渡しします。
The commemorative item will be handed to the person in person on the day.
お金は振り込みではなく手渡しで返した。
I returned the money by handing it over rather than by bank transfer.
名刺は落ち着いて相手に手渡しするのが礼儀だ。
It's proper etiquette to hand your business card to someone calmly and directly.