Observed difficulty with student following sterile technique for a straight cath insertion. Student observed a straight cath prior to performing one the same day.  Difference was male verses female.  Student had difficulty donning sterile gloves. Student needed to be prompted to prepare the catheter tray. Student used her fingers to lubricate the catheter instead of applying the lubricant directly to the catheter. Another student had to place the drape in front of the patient. The way the student prepared the cath kit demonstrated that she was not familiar with sterile technique. The student was also unsure of herself when passing meds, needed to be reminded of scanning name band and observing computer acknowledgement of correct patient.