I like to knit Halloween costumes for pets and babies. 
Did you learn how to knit with a step-by-step guide or self taught.
My grandmother taught me. 
Have you ever made a Hot water bottle cozies?
No, I haven't. Do you knit?
unfortunately no. Interestingly knitting was initially a male-only occupation.  
That is interesting! It is unfortunate that we put so many gender stereotypes on hobbies. The favorite things I knit are sci-fi related costumes. 
Yes it is an unfortunate situation. Have you ever knitted anything Doctor Who, or star wars related?
Yes. I've made a hat with Yoda ears and a Doctor Who Fez hat. And a Tardis catnip toy. 
Oh wow that is amazing. I like to buy garter stitched baby wear, especially little sweaters.
Garter stitch is the first stitch I learned when I started knitting.