Venus reveals how we EXPRESS our love. Some people are warm and effusive, such as a Cancer Venus. Others may hold back effusiveness, such as a Capricorn Venus.
The Ascendant reveals our mannerisms in daily life. It is our external mask. However, we do not choose to don this mask, at will. It is affixed.
In the case of Venus square the Ascendant, the native refrain from showing outward expressions of love.
She may feel silly or uncomfortable with warm expressions of love such as hugs and touches.
Venus is, also, outer and inner beauty(grace and charm).
A strong Venus, such as Venus trine the Ascendant may be gifted in making the most of herself, physically.
She may know how to apply make up and dress becomingly.
She may have a sense of style or panache that others envy.
On the other hand, the Venus Square the Ascendant may not know how to enhance her own beauty.
She may feel unable to make sense of the world of beauty products.
Venus trine the Ascendant may have a natural social grace.
Venus square the Ascendant may feel uncomfortable in social situations. She may feel that she does not know the right thing to say or the right way to act.
The square, always, represents a struggle and a thwart.