So, there's a couple I watch on FB in the reels (they're very cute and sweet) and she had asked him to do the door frame lean thing that's going around (where someone leans their arm up high on the frame of the door and either pulls the other person in close, or something along those lines), and he was balking saying he was going to look foolish. He kept messing around, and then finally she was by the frame, he leaned on it correctly and put his hand on her waist and pulled her close. She turned bright red and giggled, and he started laughing, saying he knew it was going to be stupid. She kept assuring him that wasn't the feeling she had at all (and it was very obvious as an outside observer that what she felt was arousal, not humor).
So, guys, do you know one of the easiest ways to be romantic to your partner? It's simple: listen to them. If they ask you to try something, no matter how "dumb" you think you'll look, try it and try it authentically. Or, if you think of something that seems romantic and/or sexy, give that a try. Even if it's something that they aren't "in to", they will appreciate the effort (and if they don't appreciate it or they mock you for it, maybe it's time to either have a deep conversation about that or find a new partner).
Men tend to think they have to buy things to be romantic, or do big gestures. But I think that most women will agree it's the little things that tend to stick out as more romantic...but then again, what do I know?