Millions of people want new, simplified ways of interacting with a computer.数以百万计的人们想要新的简化方式实现人机交互。Observing and interacting with them will help you get over your problems.观察它们并与它们交流会帮助你解决自己的问题。They feel they are interacting productively with elderly patients.他们觉得与老年病患的互动很有成效。