Ring a bell A recruitment agency asked me to apply for a company, but the name didn't ring a bell. So, I checked the website and came to an end that I declined the offer. 2. Know of someone Yeah, I know of Charlotte Flair, but I have never seen her wrestling live. 3. Expand one’s social circle I need to expand my social circle to look for a company which will help me improve my business skills. The reason is that I'm considering a job change. The more contacts I have, the bigger the potential will become. 4. on the tip of your tongue The name was on the tip of my tongue, but I couldn't remember it then.