Thumb straight up.

People with thumbs up like to think, but people with thumbs up are opinionated.

People with thumbs up like to think, and the spleen is prone to problems. People with straight thumbs are stubborn and often have poor liver function.

People who give thumbs up or go straight are born, and the cultivation of character has a lot to do with the day after tomorrow. As long as you adjust your mentality, you can have a good personality.