To make your plants look more real and natural, slightly bend the long trailing stems in a zig-zag pattern (see diagram below-Figure 1). At each leaf joint, bend stems toward the leaf. Then curve stems (see Figure 2) and arrange your plant to your desired look.
Figure 1
Figure 2
 
The leaf clusters on the short stems should be turned in opposite direction of the leaf clusters above and below, on the same stem(see figure 3). If any of the short stems seem too leggy, you can slide leaves in closer together, then take off the end cap leaves, clip the stem, then replace end leaf cap (see Figure 6).