Avoid the angry looking women officials at all cost. The ones that take too long to stamp others or ask too many questions. Look around queues and move to the one that is moving fast. The ones with angry expressions on their faces(men or women) or furrowed brows are the ones to avoid.
These individuals think the hold the supreme key, so they are always on a power trip.
Once in Malaysia, I saw an IO slap a person cause they didn't understand English.
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