[There's always next time. And just a few more pats just to make sure the sapling's holding up, and he stands, admiring the plant.] Yup! That looks good enough to me!
Give it some water -- just about the roots, just to make sure the surface of the soil's all damp.
Uh... [Bit of a headscratch.] I think I should... leave you with your plaque? I know it's personal and all, and I think I've intruded enough as it is.