Thumbs Up?

This game is a simple. Because you just guess the number of thumbs raised. But it's up to you to raise your thumb or not. It's a pvp game played by 2 to 8 people. You can play anywhere with your friends nearby because of using Wi-Fi Direct communication. (You can connect with them at a distance of about 2 to 3 meters.) For example, on the train, in the park, in the house, on the playground. Let's play "Thumbs Up?".