Place it at the exact cut where the guest enters, before any dialogue, then follow a beat later with DJ Airhorn if the entrance is meant as an over-the-top celebration, or keep it alone for a simple house-visit intro.
About this sound
This clip is a 4-second doorbell effect built around the repeated phrase 'Krovim Krovim,' chiming in like someone announcing themselves at the door. It feels playful and a little insistent, the kind of ring that turns an ordinary entrance into a small joke and makes everyone in the room look up expectantly.