A computer server of a social communication platform may be configured to provide a social communication platform to a first user to chat with a second user over a window displaying on a computer device of the first user; receive chat messages between the first user and second user, the chat message including a current geographical location information of the first user; select at least one candidate POI associated with the second user and based on the current geographical location information of the first user; send location information of at least one candidate POI to the first user through the window; receive from the first user a selection of a target POI from the at least one candidate POI; and send information associated with the target POI to the first user through the social communication platform.