Make yourself understood
Definition 1 of 2
Pro Tip 1/3Body Language
Use gestures and expressions to aid understanding when words fail. 
He used hand signals to make himself understood to the local shopkeeper.
Pro Tip 2/3Clarity Over Complexity
Choose simple vocabulary over complex to ensure clarity. 
She spoke slowly, choosing her words carefully to make herself understood.
Pro Tip 3/3Repeat Key Points
Repeating important words can emphasize your message and aid comprehension. 
To make himself understood, he repeated the meeting time thrice.