See - https://lawphil.net/judjuris/juri2003/mar2003/gr_131636_2003.html
"x x x,
It is doctrinally settled that the factual findings of the trial court, especially on the credibility of the witnesses, are accorded great weight and respect and will not be disturbed on appeal. This is so because the trial court has the advantage of observing the witnesses through the different indicators of truthfulness or falsehood, such as the angry flush of an insisted assertion, the sudden pallor of a discovered lie, the tremulous mutter of a reluctant answer, the forthright tone of a ready reply, the furtive glance, the blush of conscious shame, the hesitation, the yawn, the sigh, the candor or lack of it, the scant or full realization of the solemnity of an oath, or the carriage and mien.17 This rule, however, admits of exceptions, as where there exists a fact or circumstance of weight and influence that has been ignored or misconstrued by the court, or where the trial court has acted arbitrarily in its appreciation of the facts.18 We do not find any of these exceptions in the case at bar.
x x x."
PEOPLE OF THE PHILIPPINES, appellee, vs.
ARTEMIO INVENCION Y SORIANO, appellant.
G.R. No. 131636 March 5, 2003