You can find all the basic keybinds from the Citizens Menu (F2) and selecting the keybind overlay. Here are some additional chat commands you can use that are not on the overlay. Type T to open the box and you can use the following commands:
/ooc “your text” -Displays your text for all players to read in the chat box. Please refer to the Server Rules “Use of In-game Chat” for proper usage.
/me “your text” – Displays your text in front of your character. Often used for description of an action.
/e “emote name” – Alternate way use an emote
/scene “your message”– Leave a message anywhere in Los Santos for anyone to read that is near it. There are plenty of options you can use from the menu box that pops up afterward!
/advert “your advertisement” – Make and purchase an advertisement post that players will see in the chat box. Useful to inform people when you are open for business or running an event.
/carry -Toggle carrying the closest player to you. If there is no rp reason for you to be carried or if the other player simply won’t put you down after a reasonable amount of time, you can cancel it with /carry. Please refer to the Server Rules under “Powergaming”.
/takehostage – You need to have a gun in your inventory, it will take the nearest player hostage.
/shuff and /seat “#”– Switch seats while in a vehicle.