In this Case I would either suggest a Verbcoin that opens when you "hold" the Touch-Input (but it might seem unnecessary when there are just two Command-Types) or mabe rather make it so holding the Touch-Input could be the secondary Input:
Touch: Look at & comment.
Hold Touch: Interact (i.e Take Object, Open Door, Talk to Person).
I don't know whether that is a common Technique, but it would work and be easy to use.