I think on the lines of just a breezing touch as one walks by… with a late eye contact… with a meaningful smile…
I dunno…
or perhaps caressing the knuckles as you both are lost in your own books with her head dug into his chest. Lazying on a loveseat.
What peak intimacy looks like to me is a gentle forehead kiss when I'm least expecting it.
It's the little things: being pulled closer after a long day, having your hair gently brushed aside, a forehead kiss before falling asleep, and feeling safe without having to