I want to keep my "Chat tendency" private.

You can make your "Chat tendency" private by following the steps below.

1. Tap “Profile" in the menu at the top of the screen.
2. Tap "Settings"
3. Tap "Analysis"
4. Select "OFF" and tap "Update"

When turned OFF, "Chat tendency" will immediately display "Analyzing".

When it is turned back on, it will be displayed again at the timing of the next day's login bonus.

Please note that in this case, it will not display immediately.