First of all, congratulations that you are able to have orgasms most of the time and pretty easily. That’s already an important step, as anyone who has difficulties would let you know loud and clear. There is a whole range of responses that people have when experiencing an orgasm. Some people are very verbal, either using words or just sounds, so that there is no doubt that they are having an orgasm, while on the other end of the scale, others are very quiet. Sometimes those who are quiet would be distracted if they had to make noise, so that they couldn’t have an orgasm if they were verbalizing. If that’s your case, then just tell your husband that you are the quiet type, but that you are having an orgasm and he shouldn’t worry about it. If he’s trying to time intercourse so that you have your orgasms simultaneously, then maybe you could develop some sort of sign, which wouldn’t have to be verbal, but could be a tap on the shoulder or whatever, that would let him know that you were having your orgasm so he could have his. But if you don’t find it too distracting, then speak up. Again, you don’t have to use actual words to communicate, but can let him know simply by increasing your breathing or moaning/groaning or making whatever sounds makes sense to you. There are no formal rules, so just talk about it some more and see what works out best for the two of you.