You can agree with the person you wish to buy Bitcoin from on the price and all other details, and then you can contact one of the escrow service providers on the forum through forum messages or their official channels only.
The transactions will be guaranteed by one of these escrow service providers. Since they have a good reputation on the forum, they will ensure that both the seller and the buyer receive their full payment.. Don't worry, just look at their previous clients and the number of transactions they have handled, and you'll see that they are deserve your trust.
Also, since I provide the
BPTRADES escrow service -> [
here], I can gladly assist you with this as well, and there will be no fees for the service.