make more attractive
embellish - exaggerate
To ‘embellish’ is to make something more appealing by adding ornamentation. That can be done literally, for example by attaching decorative features or patterns to something, or figuratively. In the figurative sense, it is used in relation to speech or text that has a base level of truth, but fanciful details that aren’t true have been added to make it more interesting. Such action often leads to a negative outcome.
I just can’t believe a word of what James tells me. He has an awful tendency to embellish his stories.
Your testimony is strong enough as it is. Don’t undermine it by adding unnecessary embellishment that might catch you out.
The facade of our office building is very dull, so I decided to embellish it with an eye-catching floral design.