Cramp somebody’s style
Definition 1 of 1
Pro Tip 1/3Expression's Nuance
This phrase often implies irritation or annoyance when someone feels restricted by another's presence or actions. 
I'd join you, but I don't want to cramp your style with your new friends.
Pro Tip 2/3Emotional Connotation
Can be used humorously or lightly between friends, suggesting they don't want to interfere too much. 
Go ahead and decorate the room; I won't cramp your style, I promise!
Pro Tip 3/3Cultural Usage
In Western culture, personal freedom is valued, so this phrase may be common in contexts valuing individuality. 
She’s a free spirit – having a strict boss would just cramp her style.