Conjunct melodic movement occurs when the melody moves in a step-wise manner. The notes are close to one another. This movement is opposite of disjunct melodic movement. Conjunct melodies are like curved and straight lines. With each note lined up it has a more consistent shape. The best way to determine if a melody is mostly conjunct is to determine if it is easy to reproduce. If you can sing it easily, then it is probably more conjunct. Conjunct melodies also tend to be more restrictive in range, although there are exceptions. Note that things like tempo and articulation do not have an impact on whether a melody is conjunct or disjunct. Most melodies have both conjunct and disjunct movement. The conjunct movement makes it more familiar and the disjunct gives it more uniqueness.