First of all, when you are having a conversation you must be aware of your partner. Do not forget that your participation counts but your partner counts as well
Get used to listening.
When it´s your turn to speak try to be clear and concise. Do not make very long sentences. Long messages sometimes can be boring to others
Your intonation is important. Of course, nobody asks a question by doing an affirmative statement. Think where you put your stress in sentences.
Basics is a principal point in language. You need to make sure you use the precise words, that is to say, do not use “him” where you should use “her” or him. We are dealing basics when we deal with verbal tenses, personal pronouns of subject or object, cardinal numbers, demonstratives, possessive adjectives, adverbials, and so on.
In verbs as you should know there are three forms or elements in their presentation, namely, the infinitive, the past and the past participle. The pronunciation of the past form of an irregular verb is not usually the same as the pronunciation of the past participle form.
On the other hand, there are lots of useful expressions, linkers or even idioms which may help in a conversation. A good student, a good speaker must learn, know and use them (once more, let´s see, to sum up, unfortunalely, that is to say, the truth is that, actually, secondly, et cetera)
In English sometimes we use a future verbal tense with the meaning of a present. For example, we say “I´ll start by saying that…” meaning “empiezo diciendo que…” or “shall we open the door?” meaning “¿abrimos la puerta?”.
Phonetics and pronunciation are two pillars in the building of a good dialogue. If you pronounce well, you will always be clearly understood. Phonetics helps to pronunciation rules.
I wouldn´t like to forget probably the point number one in communication: words. Without words we speak nothing. Words, or rather, vocabulary is the most important thing in language. Learn new words and you will be able to communicate anything to anyone. Use a dictionary, take notes of new words, read texts (newspapers, readers), listen to podcasts, online radios, watch videos, talk to real English people.
When you make a sentence, remember that in English there is always an easy rule to follow which consists of subject, verb and complements in standard messages.
Therefore, if you mean “Entonces, sería …” you shouldn´ t forget the subject “it” as in “Then, it would be…”. On the other hand, when you have used a subject it is wrong to put it twice as in “ this song it is about…” and you should say “this song is about…”
Other points where one can make mistakes are confusing numbers as in “thirteen” (13) and “thirty” (30) or the ordinal numbers “twelfth” (duodécimo) ”, telling the time, men and women (the latest´s pronunciation is very peculiar).
Some speakers think that saying “and” many times will make the speech more fluent and that is wrong and boring. One has to take some other words as “however”, “nevertheless”, “but”, “on the one hand”. Try to avoid repetition which only means lack of vocabulary and style. Sometimes it will be better not to say anything and leaving a blank space in conversation, as if you were playing music. Whenever you use a verb take your time to consider if it wouldn´t be nicer to choose a more specific verb instead of the verb “to be” or “to have” [ “go”, “visit”, “walk”, “travel”]
There are lots of words that we don´t often check in the dictionary. We do not know their meaning. Sometimes we pronounce them wrong.
Never forget the idea that English grammar is not a cheese but “lots of cheese”. Be available to learn rules or new aspects of grammar. I have just remembered now the rule of the verbs of like and dislike which take the gerund after themselves: like/hate/love/prefer + Ving
She hates waiting for her brother every day after class
When you talk to someone, try to make short messages. Most of times you go further on you make a mistake, nevertheless the best way to learn is by making mistakes and talking.
If your partner asks a question starting with “do” as in “do you like eating hot dogs?” you will be expected to answer by using the same auxiliary verb, “yes, I do” / “No, I don´t” and then continue with your part of the conversation. If your partner starts with “have you ever driven a car?”, again you must give something like this “no, I haven´t”/ “yes, I have”.