"Chat heads is a messaging feature of Facebook's new Android overlay called Home, which allows disembodied profile pictures to follow you into other apps."
Notice the word disembodied. Today while I was walking and praying as I do each day, I thought I have chat heads in my head. Let me explain: when I walk, and pray and pray in the Holy Spirit, people's faces will pop into my head, and I will pray for them in English or my prayer language. This is also how God puts the pieces of puzzles together and will give me Words of encouragement for others. The puzzles I refer to are teaching principles God is revealing to me about Divine Healing, etc.
Many times, it was my honor to pray for some of you. I count it a privilege. So, I have a new perspective on chat heads on FB: I Iike them now. I also, say "Lord let them keep popping into my head!