How do I get two random values from a table?

local PlayersInServer = {}
local ChosenPlayers = {}
for i=1,2 do
    if i == 1 then
    local RandomValue = math.random(1,#PlayersInServer)
    local ChosenPlayer = PlayersInServer[RandomValue]
    table.insert(ChosenPlayers,ChosenPlayer)
    end
    if i == 2 then
        local RandomValue = math.random(1,#PlayersInServer-1)
        local PlayersInServerCopy = PlayersInServer
        table.remove(PlayersInServerCopy,ChosenPlayers[1])
        local ChosenPlayer = PlayersInServerCopy[RandomValue]
        table.insert(ChosenPlayers,ChosenPlayer)
    end

    RandomValue = math.random(1,#PlayersInServer)
end
for i=1,2 do
    print(ChosenPlayers[i])
end

This should work as a script for what you are doing. So on lines 5 to 7, it will generate a random value, choose a player then add it to the ChosenPlayers table. On lines 10 to 14, the script will generate a random value for the PlayersInServer table, minus one (because we have already used it in the ChosenPlayers table), it will then make a duplicate of PlayersInServer named PlayersInServerCopy, remove the already chosen value from PlayersInServerCopy and add the make a new ChosenPlayer and add it.

Something that may seem a little more simple. Note that this method is not ideal, as it will only works for finding two random players. Otherwise you'd want to use a Table to accomplish this.

local PlayersInServer = {}
math.randomseed(tick())

local previous;

for i=1,2 do
    repeat
        local value =math.random(1,#PlayersInServer)
            picked = PlayersInServer[value]
    until previous ~= picked

    previous = picked
    print(picked)
end