Place it at the start of a clip as the greeting, then follow with Okay Let's Go when the action begins and Ara Ara for a second beat later in the edit.
このサウンドについて
This is a 1.4-second voice clip of streamer Gragolândia saying 'Oi Linda!' in Portuguese, a warm greeting aimed at someone attractive. It feels playful and flirty, with a teasing charm that makes it land as a light joke rather than a serious compliment. The line comes from a League of Legends live stream.