Formal:
* Jọ̀wọ́, dúró níṣẹ́jú kan. (Please, wait for a moment.)
* Jọ̀wọ́, fẹ́rẹ̀ẹ́ sí i níṣẹ́jú kan. (Please, wait a little while.)
Informal:
* Mínitì kan, jọ̀wọ́. (One minute, please.)
* Jọ̀wọ́, dá mí síṣẹ́jú kan. (Please, give me a minute.)
* Kẹ́ẹ́kẹ́, jọ̀wọ́. (Just a second, please.)
Note:
* "Jọ̀wọ́" (Please) is always included in polite requests.
* The phrase "níṣẹ́jú kan" (for a moment) can be replaced with "nígbà díẹ̀" (for a while) or "níṣẹ́jú díẹ̀" (for a short time) to express longer periods.
The best way to choose the right phrase is to consider the context and your relationship with the person you're speaking to.