Was there a shift label? It would be 3 letters. Because that may give you insight. There is probably a special project your TLs want you to do, but wanted to distinguish you from a normal shift in cosmetics.
If it’s a normal Hardlines shift - basically the same thing as beauty. Zoning, working stray/reshop, doing pulls, answering phone calls for Hardlines, answering fast service buttons, and helping at the lanes. More likely then anything though they just scheduled you under Hardlines because they have extra hours there, my store has been scheduling Plano and Instocks under Hardlines.. ask your schedulewriter to be 100% sure.