Your eyes, but not 100% accurate.
A measuring instrument is used almost everyday to see the degree or extent of something. When you get your feet measured for new shoes you are using a measuring instrument.
There is a lot of people that touch an owl but I did not get to touch an owl but I wish I could get to touch an owl or at lest see one eat a worm
noise
One way of measuring a presidents succes or failure is to see the relationship with Congress. If Congress is on the president side, the president will have leavrage in pursuading Congress.
The audience can see how the narrator compartmentalizes
The software updates for the iPod Touch are free (See links below).
Measuring marketing productivity involves evaluating how well a current marketing plan is going. It is used to see if it is working, if there are any issues, or if it needs to be changed or let go.
Future. You can see your future but you can't touch it.
clock is type of measuring device that you can use to see the time
a sphygomanometer is actually a tool used for measuring blood pressure in your arteries. the "instrument" refers to a tool, but i do see where you got that.
The person either does not trust what you say OR they want to experience it themselves to see how hot it is.