Increasing - which is the better way?

I am knitting a baby sweater (from DB Beginner Knits for Babies) and its telling me to make an increase. These are instructions:

“Inc row (right side) Inc one st, k to last st, inc one st”

Which is the best increase to do here???

These directions tell me that you should do a knit into the front and back increase. If you want, though, you can do an M1 increase between the first and second stitches from each end.

Thanks Ingrid. I’ll try it.