There are lots of new kids on the block. Take them step by step.

EAT
Patty Burger Sneak Peek
What: Quick-serve spot known for hand-pattied, made-to-order burgers fires up Loop with a preview.
Why: Meat your heart out.
When: Thurs. & Fri., 7 a.m.-9 p.m.; grand opening, next Wed.
Where: 72 E. Adams St., b/t Michigan & Wabash Aves. (312-987-0900).

Royster with the Oyster Festival
What: Oyster specials, live music, and nightly slurping contests.
Why: Just for the shell of it.
When: Thurs., 5:30-10 p.m. Tent party shucking contest, Fri., noon-10:30 p.m.
Where: Shaw’s Crab House, 21 E. Hubbard St., b/t State St. & Wabash Ave. (312-527-2722). Tent party, at Clark & Kinzie Sts.

SEE
Packer Schopf Gallery Opens
What: Two galleries merge into huge West Loop space complete with a basement “lab” for experimental works.
Why: We’ve loved Aron for a long time.
When: Opening reception, Fri., 6-9 p.m. Gallery hours, Tues.-Sat., 11 a.m.-5:30 p.m.
Where: 942 W. Lake St., b/t Sangamon & Morgan Sts. (312-226-8984).

DO
Kérastase Ritual Hair Treatment
What: New computerized diagnostic tool analyzes tresses; pros rescue them with massage and product.
Why: The hair doctor is in.
When: Tues., 10 a.m.-8 p.m.; Wed., 9 a.m.-7 p.m.; Thurs., 10 a.m.-8 p.m.; Fri., 9 a.m.-6 p.m.; Sat., 8 a.m.-6 p.m.
Where: Maxine, 712 N. Rush St., b/t Superior & Huron Sts. (312-751-1511).

BUY
Shop into the Night
What: Roscoe Village stores stay open late with sales, snacks, drinks, and giveaways.
Why: Let the impulse-buy bugs bite.
When: Thurs., 6-9 p.m.
Where: Participating shops on Roscoe St., b/t Damen & Oakley Aves. (773-327-5123).