Jan 28 11:29
Hi Domenic,
Thank you for contacting us and playing Hay Day! My apology for the late reply and writing in English.
We love to hear from you and greatly appreciate your feedback regarding adding friend from Google play. I will take note of your suggestions and present them to the team as soon as possible. We are constantly working to improve the game and to make it even more fun, and let me say that getting feedback from helpful players such as yourself is always a big inspiration.
However, you can find new friends in different ways and start enjoying the game at its best.
You can connect to Facebook (Settings > Facebook Connect) and all your Facebook friends who already play the game and who gave their permission to be found will be automatically added to your friends list.
You can also follow up to five farms. Just visit a farm and tap on the "bookmark" icon next to the farmer avatar to start following it (a second tap will allow you to unfollow it). These farms will also be added to your friends list!
Unfortunately, there is not currently a way to add friends through Google+ and Android devices do not have access to Game Center. So, while the methods of acquiring friends listed above are the only options currently available - as always we are working hard to find other ways for you to interact with your friends in Hay Day. I hope this helps. If you have any questions about this, please let us know.
Have a Hay-ppy Day!
Keith | Player Support | www.supercell.net
Hay Day http://www.facebook.com/HayDayOfficial | Clash Of Clans http://www.facebook.com/ClashofClans