All 3 Uses

indicate
in
Hatchet, by Gary Paulsen
(Edited)

On the dashboard in front of him Brian saw dials, switches, meters, knobs, levers, cranks, lights, handles that were wiggling and flickering, all indicating nothing that he understood and the pilot seemed the same way.
p. 3.8 *

indicating = showing
Down beneath that were dials with lines that seemed to indicate what the wings were doing,
p. 16.3

indicate = show
And the bear had almost indicated that it didn't mind sharing, had just walked from him.
p. 71.8

indicated = showed

Definitions:

(1) (indicate)
to show (point out, demonstrate, express, or suggest)

The form, indicator can refer to many different kinds of things including intentional signals (such as a turn indicator), gauges (such as one that indicates pressure), or a measurement (such as an economic or chemical indicator).
(2) (meaning too rare to warrant focus)