The next key component, as clichéd as it sounds, will be to focus on using "I" statements; owning your desires and asking for what you want does not come across as criticism as much as focusing the conversation on what he isn’t doing.
Next, ask yourself what it is you are looking for. What other areas do you wish he’d explore, or spend more time on? Do you know what brings you to orgasm so that you can clearly convey this to him in some fashion? If not, consider investing in some play time alone. If there have been previous experiences (both with a partner or without) that were particularly awesome, think about why they pleased you so much.
If you are in the heat of the moment, there are several ways in which you can tell your guy you want an orgasm without actually talking about it. Positively reinforcing something he does well while he is doing it is one rather sexy way to do this. Say things to confirm you like what your partner's doing, ask him to keep going, perhaps even tell him you are really close an, "OH BABY, please don’t stop now." That way, he gets to feel like a stud (without ever knowing he wasn’t).
Playing a fun game of self pleasure in front of your partner and telling him that he cannot - under any circumstances - touch you while you are touching yourself is another way to show him how you like to be handled. If you can, tell him what you are doing while you are doing it so he hears and sees how much you like certain areas to be touched. Find out how long he can hold out before he can’t stand being a bystander anymore. Under pressure, there is always the option of doing it yourself; nothing wrong with giving your partner a hand (pun intended).
