It's a shame that most men learn about pleasuring a woman from pornography where foreplay is nonexistant, and performing oral sex on the girl is minimal, where touching and licking and kissing is unheard of. Unfortunately, many guys kinda rush into things and perform very sloppy, because well.. That's how they learned it was done.
You know what you like, you understand your body, you need to bring him up to speed. There's nothing here about being dominant, and there's no need to "sit down and talk to him" which can be quite embarassing for him and may very well make him more self conscious and more sloppy with his sexual actions.
So what do you do? You lead him, when he does something right you let him know... Not by verbally speaking, but with the moans, the way your body twists, or you dig your nails into him, the way you tug at him. When he does something not so good, don't let any pleasure out. It's a simple, but effective technique of communication without speaking. Using body language, and sounds to direct him, to lead him. Take his hand and show him what to do, or even do it yourself.
So yes, you can teach an old dog new tricks... :)