If you ordered a good head gasket set, seals (and the cocaine straw) will come with it. My second set of seals I ordered through NAPA...but they didn't have the straw. Depending on the head gasket set, you might end up with two different types of seals, one for exhaust, one for intake. I don't recommend the intake (rubber) seals: get another set and do them all the same (plastic/metal). The set might also confuse you with itty-bitty valve seals: the same head gasket set is for the 2.0, and thus has jet valve seals and a tiny cocaine straw, along with some o-rings.

If you go to the NAPA online or RockAuto site, there will be pictures of what you get in the set you order.

Very likely the shop will clean the head. Follow through with the recommendation of Jefferson Airplane in the song, "White Rabbit" : "Feed The Head".