Guess me : Inside we're wet and outside we're dry But the weather we do not defy Losing our heads, we don't ...........

Question

Inside we're wet and outside we're dry
But the weather we do not defy

Losing our heads, we don't go berserk
But this is when we do our best work

Some of us activate with a click
Although human power makes us tick

We're instruments not found in a band
We're useless unless given a hand

What are we?

Answer 1

pens

lines 1-2: Pens are wet on the inside because of the ink they contain. They are dry on the outside.

lines 3-4: Some pens have caps ("heads") that need to be removed before one can write with them.

lines 5-6: Other pens work by pressing their button, which often produces the sound of a "click". This "click" is not to be confused with the click of a computer mouse. Pens work via "human power" whereas computers need electric power in order to function.

lines 7-8: Pens are writing "instruments", not musical instruments. Without the aid of one's "hand", pens are "useless".