in speech bubbles over the avatar's head and in a chat log. Users could switch between text chat and voice chat from within the chat log. Voice chat, with the use of a headset, was available within personal spaces and clubs, or on private voice chat channels with groups of up to eight users. The user could also perform visible gestures (or "e-motes") such as waving, nodding, or dancing. A "quick chat" feature, with predetermined phrases, was also available. Users could also indicate the emotional status of their avatar, which was displayed below their name. Some avatar costumes also had additional e-motes. Economy Although the service itself could be used free of charge, premium content was available to purchase from various stores in the shopping complex and in certain spaces. Users could browse and pay for items, such as virtual clothing and furniture, by accessing a shop and using its PlayStation Store interface. Items were paid for with real currency using funds from the user's PlayStation Network Wallet. Alongside content designed by Sony Computer Entertainment, other companies were also able to sell virtual goods through their own stores in Home. For example, Diesel, Ligne Roset, and Game were represented in Home with their own stores where users could purchase virtual items based on each company's own clothing and furniture designs. Advertising was prominent in Home's public spaces. The majority of advertisements were focused on PlayStation-related content, although other video gaming-related brands were also represented. Most advertising was targeted to specific regional audiences. Pre-order bonuses To advertise games in the North American Home, Sony released pre-order bonuses for PS3 games, mainly from Amazon.com. The first Home pre-order bonus was for the PS3-exclusive Killzone 2. Users in the North American Home who pre-ordered Killzone 2 from Amazon.com received free additional costumes for their avatar. On February 16, 2009, if users located a Helghast soldier in the North American Home, they were granted access to the Killzone 2 demo. Other Amazon.com pre-orders bonuses were given for inFamous ("Reaper" costume), Darksiders ("Ruin Head Mask" and "War Armor"), MAG ("S.V.E.R. Barracks" personal space), and BioShock 2 ("Big Daddy" costume). Ratchet & Clank Future: A Crack in Time also received a pre-order bonus from Game Crazy. Users who pre-ordered the "Space Package" for the game received a PlayStation Home Avatar Skin. Total Game Integration Total Game Integration (TGI) began in 2011 and became Home's unique way