The plaza generally have free wifi, open the cell phone network settings, search for networks and click on the link.
There are three types of free wifi in public ****places, one is the wireless network emitted by the merchant's own layout router. The second type is the supplier to the merchant to provide them with the production of routers, these routers emit signals do not need a password to connect, just use the software to follow the relevant public number, download the cell phone software or log in with a cell phone number can be used. The third type is wifi that requires you to download relevant software to connect, which is generally not the case.