In the text, alternate long sentences with short ones to make the paper dynamic and easy to read.
Eliminate complex terms, obscure words and jargon, the examiner and the audience of listeners should understand what is being discussed.
As little as possible in the text should meet common phrases, let the essay be unique and as individualized as possible, not copying and paraphrasing someone else’s work.
Humor is appropriate, but in the minimum amount and maximum delicacy, but sarcasm and impertinence can cause a negative emotional mood in the reader.
Personal experiences, memories and impressions can be cited to persuade the reader.
You should not deviate from the topic and the main idea, describing unnecessary terms, details, and so on.
After finishing your work, it is worth rereading it aloud to make sure it is logical and consistent.
To give the topic in question more credibility, you can cite facts and the results of your own research.

Rules for a competently composed essay:

Conformity to the topic, semantic unity of information;
Сeative perception and comprehension of the considered topic;
Self-presented judgments;
Competent appealing to the historical terms and facts;
The pithiness and truthfulness of the material;
The correctness and clarity, the proof of the main points;
Judgments and conclusions clearly based on the arguments presented;
The literacy and truthfulness of each argument;
The ease with which citations and examples from society can be used to support a point of view;
Appropriateness of analogies.

Related Resources:
The plan and structure of the essay
Structure of an essay
Typical mistakes made when writing an essay
Grading criteria for social studies essays