Timidity is when someone is very shy or nervous and they feel afraid to do things or speak up in front of others. It's like when you're playing a game with your friends and you don't want to take your turn because you're scared you might do something wrong and everyone will laugh at you. That feeling in your tummy that makes you want to hide is called timidity. It's okay to feel timid sometimes, but it's also important to try and be brave and do things even if we feel a little scared.