Sometimes you have to be much more blatant than what you are doing....take them off balance. Kind of throw them out of their comfort zone. Sorry guys if this is TMI, but it's an example to use: There have been times when I wanted to make an impact on my H so without warning, while he's watching tv and comfy in his chair....I walk up to him and whip off his sweat pants (really easy to do when someone's reclined LOL, and proceeded to give him a BJ. Unasked for, and completely unexpected by him. When he finished....I put his pants back on him, smiled and went about whatever chores I had been doing prior to my sneak attack.
The times I have done this, I have ABSOLUTELY gotten my H's attention and thrown him off kilter. The key to this one though, is DO NOT EXPECT ANYTHING IN RETURN. This is something you are doing just for him, because YOU want to do something FOR him. With my H if I had started something like that, and then also tried to initiate sex with it...he'd have felt pressured and probably withdrawn into himself. Leaving it at just a BJ just left him stunned.