Hi I'm Ricey, or Riceyy in game, or Chris in real life.. or whatever.

Currently playing a level 30 Warrior and 7 Archer, I've joined the forums to try and find out some more info about the game as I'm confused about a few things, like I'd like to know how you accept people's invitations to join them, as some guy keeps inviting me to join him but won't tell me how to accept! Also, the custom skins, I know they're rare, I know you have to buy them from other players but I can't find anyone willing to tell me what they're called!