Do you prefer to say buy/sell

or long/short?

I prefer to do one to open, then I like to do the opposite one to close.

Cool.

Hello, can you please give me an idea of what do you mean by buy/sell? What's the other naming to this?

Open long position: long
Close long position: close the long

Open short position: short sell
Close short position: close the short

It may be an overdo.
In old times people use phone call to place orders and this could avoid miscommunication.

Honestly, I prefer to buy and sell. It is simple, easy and leaves no scope for any kind of confusion. A lot of traders also call it long and short but it’s fine if it works for them really. What do you prefer?