I loved interviewing the sisters. I don't know if this is done anymore (probably not), but when I was a pledge we had to interview each sister and have her sign our notebook before we could get initiated. I enjoyed it a lot because it gave me the chance for one on one time with each sister and the opportunity to get to know them as individuals. I still have my pledge notebook and every once in awhile I pull it out and read through it.
Also, during I-week the sisters wrote the pledges individual letters telling us how much they loved us, were excited for us, were looking forward to calling us "sister". I LOVED those letters; still have those too!