Very simple, as long as the words end with the letter "e" it will be the feminine words, other than that, it will be masculine words.
Therefore, when we said an objective like "Table" is a feminine word, but in french we can't just said "table" we must say "La table". "La" means "the", and La is apply for Feminine words. For masculine words like "Restaurant" we should apply "Le", it will be "Le Restaurant". For plural, example like "Fourmis"(ants in French) we could apply "Les fourmis".
But when vower meet vower(A, E, I, O, U), example "the student", it will be "Le étudiant" or "La étudiante" as u can see the end of the first word are vower and the first alphabet of the second words are vower( L'e' 'é'tudiant) it will be come L'étudiant. Other than that, English and French are quite similar, like we don't say "a hour" we say "an hour" because, we don't pronounce the letter "H" in the word "hour" we pronounce as "our" starts with the "O", so it consider a vower. In french watch out for the word like "hôtel", therefore, it won't be "la hôtel" it will be "l' hôtel".
So there will be all for now. Will update more soon ...