to cover up their sense of unworthiness

[keannu]

Sometimes it's confusing to judge whether to-infinitive describes the antecedant - adjective usage, or functions as the subject's action - adverb usage. The underlined can be interpreted in either way - behavior is covering up or they try to cover up. Is to-infinitive sometimes twofold?

ex)People with high self-esteem have confidence in their skills and competence and enjoy facing the challenges that life offers them....However, those who have low self-esteem tend to feel awkward, shy, and unable to express themselves. Often they compound their problems by opting for avoidance strategies because they hold the belief that whatever they do will result in failure. Conversely, they may compensate for their lack of self-esteem by exhibiting boastful and arrogant behavior to cover up their sense of unworthiness...

[emsr2d2]

What do you not understand about the underlined part? It seems quite straightforward to me if each word has been looked up in a dictionary.

[keannu]

Thanks for your answer, but I didn't not ask about words but the grammar.

[emsr2d2]

I think you've edited your first post since I read it. When I first saw it, what is now the first paragraph wasn't there. There was just a paragraph of text, with some underlined words.

[keannu]

It's because editing here is quite unstable. I blew up a huge text so many times, so I'm afraid to blow the whole, sometimes saving step by step. If I clicked on some irrelevant module by mistake, all the things used to be deleted.
And also it's partly because of your great care(kind of hastened, but I really appreaciate your quick answer).
Anyway, I'm still waiting for the grammar-wise answer.