Go old school and send your thoughts through the post rather than electronically. Send a beautiful local HK card to your friends and loved ones to show them that you're thinking of them across the miles.  All cards are sized 5" x 7", blank inside and come with a white envelope for posting. 

Cards available at all Bookazine (https://bookazine.com.hk) stores across Hong Kong and House of Cards (https://www.houseofcards.com.hk)