😀

Avec plaisir! I love the fact that it makes me think more deeply about and explore my own native language 😀

Wendy, thank you so much for your clear explanations and your patience! :-))

Speaking generally here, it would be more natural to use 'You'. Also in informal, conversational English, we nearly always use contractions: 'they'll', rather than 'they will'.
The expression would be 'kid around' rather than just 'kid'. This expression sounds a bit odd to me, until I realised that it is more commonly used in American English, whereas Australian English tends to be more closely allied with British English. We would be more inclined to say 'fool around'.
You never know in advance which side they'll sit on . . .
Gégé — Do you really think we have time to kid around?