how can I change the skin tone of the hand signs and faces?

[Android Central Question]

In go sms pro on my Android phone

 

[SpookDroid]

Depends on the keyboard and app you're using, and not sure Go SMS supports it. If it does, it's usually long-pressing the emoji before inserting it into the text (they usually show with a downward-facing arrow in one of the corners); that lets you select the skin tone for it.