dāitóudāinǎo
ㄉㄞ ㄊㄡˊ ㄉㄞ ㄋㄠˇ
Simplified 呆头呆脑
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 呆頭呆腦 and it comes back until you know it.