The composition of this group varies. It could be an adult pair with young, two adult females with young, or one adult female with young. The adult males are territorial and they seek home ranges that overlap several female home ranges. This galago communicates using several vocalizations. The young make a soft clicking sound to their mother.
Adults make a louder clicking noise to call to other adults.
There are also loud cries, barks, and a high-pitched alarm call. The thick-tailed galago also communicates through olfactory signals. They urine mark and urine wash. References Galagos, Bush Babies. 364-367 in Ronald M. Nowak and John L. Paradiso, ed.