keep (one's) place
To be aware of the limit of one's role in a particular place or situation. I keep my place and don't bother the CEO when I see him around the office. I'm just an intern, after all.
keep one's place
Fig. to exhibit only the behavior appropriate to one's position or status in life. When I complained about the food, they told me to keep my place! I suggest you keep your place until you're in a position to change things.