Were the two of you on a date? It's hard to tell since you weren't actively doing anything aside from enjoying one another's company.

Rohan was sat on a bench near a park, drawing god knows what in a large sketchbook, while you were tasked with getting him (and yourself) some coffee.

As you came back and gave him his, you say down beside him. Once your hand hand rested beside you, he put his over yours and held it.