Humble
This radical is the same as the kanji you learned earlier, but the meaning is a little different. It's not just for saying things humbly, it's for being humble in general. When you see this radical, think about being humble.
You can kinda see this as someone with their hands pressed together in front of their body, in a very humble posture. Maybe a humble Buddhist monk wearing some big robes? Imagine him all humble there, head bowed, hands pressed together.