This is a raised right hand with the back of the hand facing forward. Except for the little and big thumbs
👍 straighten, the other fingers are rolled up. When you are far away from someone or it is not convenient to speak, you can use this gesture to remind him or her "Please call me"
☎️📱. Some other platform images also have the left hand with the palm facing forward, making the same gesture. Similar emojis:
🤞🤟🤘👌.