[ Jack withdraws his hand when Bruce offers him a smile, subconsciously feeling most of the effect dissipate; he was connected to it. Settling back in his seat he returns the smile, hesitant but relieved when the man deems the experiment successful. He had never seen Bruce smile like that, unreserved and it warmed him inside. ]

It doesn't usually come on that strong.

[ The statement is still faintly apologetic but he continues with a touch of pensiveness. ]

And it doesn't work on everyone. Kyle made me try it on him too, just like this. He shook it off before it really took hold.