“How can I help?” is one of the best questions anyone can ask.
It recognizes that someone probably needs assistance but might not have wanted to ask. It shows you’re not satisfied relaxing while someone else is trying their hardest. And most obviously, it shows that you’re willing to help.
Ask the question more. Look for opportunities to ask the question, and encourage those around you to do the same.
There is no skill more valuable than learning how to add value in any room you enter. The best way to start is by asking “how can I help?”