When conveying a point, what is the best body language to use?

Anyway all the conveyancing should be done by the time you get to the plastering. 😀

Hold the pistol in front of you---police stance---with both hands--pointed right at them.

Lean forward towards the listener, hold their eye contact

Authadox or southpaw. Depending which hand u write with.

Standing proudly naked, with an erection.

Sign language probably

A passionate raindance