My favourite times are when I'm alone with my boyfriend anyway, so any gestures undertaken then would simply make it even more amazing
Having said that though, last week I logged on to my Facebook, and there was a lovely message from my boyfriend expressing how much he loves me. It honestly made me smile, and we're not the type of couple who are all over each others page the whole time with "I <3 u" etc etc. It was just a really nice surprise
Of course, it was followed by comments from our friends slagging him as he doesn't usually show his feelings in public! He replied to them saying that he guessed his very strong feelings for me overrode that part of his character momentarily.
Talking to him about it the next day he said that he was actually fairly tipsy when he wrote it. I asked why didn't he just say that on Facebook to the friends who were teasing him, and he said that he didn't see why he should have to explain it or redeem himself to them by saying he was drunk. That he meant every word anyway, and wasn't ashamed of it. That made me smile even more
Not really a "grand" gesture, but I suppose it was nice to have him publicly express it despite the (friendly) slagging.