I have seen so many cupcakes frosted , not using a 1M but smooth, almost like it just like it just flows out of the pastry bag and covers the cake perfectly almost round. Not sure how else to explain it sorry. Is it just using a pastry bag no tip? I am wanting to frost cupcakes and put simple decorations on top but my frosting seems to crust right away and not flow Thanks for any and all suggestions !

Its just the piping bag with the large coupler on it (the part you put in the bag, not the other part that screws down the Tips).

Add more liquid to your frosting and keep mixing. It has to be soft enough to spread right out of the bowl or it's not going to work.