Adult only. Private by design.
What Interested in does

The select is Women, Men, or Both. A card needs both people to include each other.
The short answer
Interested in is a select on a key party or a play party. Your host invites friends. The host invites friends they'd love to have there. One private link per couple. The choices are Women, Men, and Both. Your partner is never a card.
Someone appears on a card only when each person includes the other. A key party Play Partner uses that same rule. On a couples only play party, each partner keeps their own list.
Adult only. Private by design. You confirm you are 18 or older. The host still checks you in. A private no stays private.
The Bi chip
Show a Bi chip appears only when the choice is Both. It is a small Bi chip on the card and the profile, and it only shows when you are interested in both. Leave Both, and the chip turns off. Women alone does not show it. Men alone does not show it.
An empty choice is refused. The app asks you to choose men, women, or both. The choice locks when answers lock, and it is saved on the profile.
A speed date does not show this select. A straight party that is not a key party or a play party shows the party's own setting instead. The line says it is set by that Straight party.
What the select is not
This is not the room type. Bi-friendly versus a straight room is a separate page. This select is the guest's own list on a key party or a play party.
It does not answer the cards, check anyone in, or start the reveal. The host still sees a short note that each guest chooses women, men, or both.
A night in Los Angeles can use the select. San Francisco can too. Those cities have their own pages. The choice still lives on the guest.
The list is not the reveal
All mutual-yes matches are revealed by the format the host already chose. Interested in only decides who can be a card. A one-sided yes stays hidden.
A key party shows one Play Partner at the same time, after the host starts the reveal. A play party keeps matches hidden until the host reveals them. A speed date is short rounds, then yes or no.
FAQ
Is my partner a card?
No. Your partner is never a card. The cards are other people.
When does someone appear?
Only when each of you includes the other. One side is not enough.
When can I show a Bi chip?
Only when you choose Both. Leaving Both turns the chip off.
Does a speed date have this select?
No. Interested in is on a key party and a play party. A speed date does not show it.
When do matches show?
All mutual-yes matches are revealed by the format. A key party shows one Play Partner at the same time, after the host starts the reveal. A play party keeps matches hidden until the host reveals them. A speed date is short rounds, then yes or no.