I have a coworker who feels the need to make a show of things.  Today was their birthday and their desk is covered by flowers etc. so everyone knows it’s her birthday.  Thing is, none of her coworkers got her anything, she self-promoted it all.  Do you really need 8 mylar happy birthday balloons over your cubicle?  When she purchased a new car, she was walking around showing everyone pictures of it.  I don’t recall anyone asking to see them.