Then sit in the chair wherever it is. Don't move the chair to be closer to him. Anything I hate is to have a fellow try to sit in my lap. Don't try to shake hands until he offers his hand first. Don't go into a man's office smoking.
Some men object to it.
If he offers you a cigar, that's all right. Above all, when you're talking with a man, look him in the eye. I don't trust then fellows who're afraid of looking you in the eye. Be on time. And furthermore no man ever really amounted to anything who didn't, at some time during his life, work more than eight hours a day.