I feel like I want to shake things up for them too. Like I have this urge to because they don't see how something that is not 100% cautious won't hurt us. Yes, it's easy for me to make them laugh too....I guess it's not really the characteristics of my friend that I like so much. It's just her unique nature. She is ridiculously organized.Im always able to make an istj laugh. They seem kind of uptight at times and I feel like I have to shake things up for them. I worked with an istj on a project this last semester and we worked well together. I did a lot of idea collecting and they were able to organize them.