There are multiple examples of romantic traits in Wordsworth's poem "The World is Too Much With Us." To being, one needs to understand the definitions of both romantic and traits.
Romantic is when something is marked by feelings of affection and/or love. A trait is a quality of something. Therefore, romantic traits refer to the quality of something being marked by feelings of love or affection.
In regards to Wordsworth's poem, an example of romantic traits (as based upon the above definition) is as follows:
"We have given our hearts away"-- Normally, one gives their heart away to another when they are moved by the person and have feelings of love or affection for them.
Another definition of romantic can encompass the natural world. Many romantic poets used imagery of natural elements to define mood and or the message behind their poetry. This poem is no different. There are multiple references to nature in the poem; each which qualifies as a romantic trait:
1. "Little we see in Nature."
2. "The sea that bares her bosom to the moon."
3. "The winds will be howling."
4. "Sleeping flowers."
5. "Rising from the sea."
Each of the above mentioned refer to different elements of Romantic traits as depicted through nature.