A ‣ Advice and warnings 
proverb | paraphrase |
Don't count your chickens before they hatch. | Don't anticipate the future too much. |
Don't put all your eggs in one basket. | Don't invest all your efforts or attention in just one thing. |
Never judge a book by its cover. | Don't judge people/things by their outward appearance. |
Never look a gift-horse in the mouth. | Never refuse good fortune when it is there in front of you. |
Take care of the pennies and the pounds will take care of themselves. | Take care of small sums of money and they will become large sums. |
We'll cross that bridge when we come to it. | We'll deal with that problem when it actually happens. |
B ‣ Key elements 
Proverbs can be grouped by key elements, for example, animals and birds.
When the cat's away, the mice will play. [people will take advantage of someone else's absence to behave more freely]
You can lead a horse to water but you can't make it drink. [you can try to persuade someone, but you can't force them]
One swallow doesn't make a summer. [one positive sign does not mean that all will be well; a swallow is a bird that returns to Britain in late spring]
C ‣ Visualising
As with learning all vocabulary, visualising an element of it often helps.
Language help
Speakers tend to use proverbs to comment on a situation, often at the end of a true story someone has told, or in response to some event.