How do you spend time with your father in law?

Try to first sit down and talk to him about things , life, sports, how he and your mother-in-law met. Then why not take him out for dinner or do something he likes. He'll appreciate the time you spent with him. For example, say he likes to Golf, well if the weather if nice, why not take him golfing? If you spend time, and want to spend time with him, he will appreciate and most likely enjoy your time together!