As Mike Duffy took the witness stand for his third day of testimony in an Ottawa courtroom, the defence tried to paint a picture of a dutiful public figure who travelled across the country to listen to citizens’ concerns and educate them on policy. In doing so, the defence attempted to chip away at the Crown’s allegations of improper travel expenses.

Duffy has pleaded not guilty to 31 charges of fraud, bribery and breach of trust.

Here are five things we learned from Duffy’s third day of testimony on Thursday:

Statement to court

In a brief statement ahead of his third day of testimony, Duffy said that some of his emotional responses on Wednesday were inappropriate, explaining that the day marked two years since his sister’s death. In his testimony Wednesday, when asked about charges related to travelling for funerals, the senator said, “I am so fed up with this.â€

Duffy appeared to be in better spirits on Thursday.

After another hours-long round of testimony, defence lawyer Donald Bayne asked his client whether he was getting tired. Duffy replied no, and then cheekily referred to himself as a “macho man.â€

‘Friend-raiser,’ dutiful senator

Duffy says he was brought on as a senator to “friend-raise†by expanding the Conservative voter base on his travels.

Duffy insisted that, at all times, he was travelling on public business in his capacity as a senator.

As a former journalist and TV personality, he was considered a high-profile Canadian, who gave third-party validation to the government, Duffy testified.

Duffy said he was lobbied on a wide range of issues, including putting pressure on North Korea for democratic reforms and expanding universal healthcare to the U.S. On Thursday, the defence submitted as evidence the business cards of people Duffy spoke with about public matters.

At public events, Duffy was there to listen and bring concerns back to Ottawa, he testified.

“I smiled, took notes. And listened,†Duffy said.

Harper the ‘marketing whiz’

Duffy sarcastically referred to former prime minister Stephen Harper as the “marketing whiz†who nixed a public photo-op between Duffy and then-Conservative MP Gary Lunn in 2009.

Duffy has been accused of billing taxpayers for going to see his daughter’s play in B.C. However, Duffy said he travelled to the West Coast to attend a fair in order to help Lunn with his re-election bid. Duffy said it was a coincidence that his daughter’s play was on at the same time. When he returned to his hotel following the play, Duffy said, he had a message telling him not to attend the fair with Lunn. Duffy said he thinks the last-minute cancellation came from Harper, who may have thought Duffy would detract from Lunn.

Duffy insisted Thursday that if he wanted to see his kids, he could do so at “any time,†and didn’t need to cloak his visits as business trips.

Speaking in relation to Lunn, Duffy also said on the stand that in the former MP’s Vancouver Island riding in 2008.

Dog show

Duffy also denied that he travelled to Peterborough, Ont. in 2010 for a dog show on the taxpayers’ dime, as the Crown has alleged. Duffy testified on Thursday that then-Peterborough MP Dean Del Mastro invited him to the city to meet with a local Christian radio station in need of assistance. Duffy testified that he agreed to go so that he could lobby Del Mastro -- then parliamentary secretary to the heritage minister -- for money to repair a theatre in P.E.I. Once there, they visited the Peterborough dog show on Del Mastro’s suggestion. “We are dog fanciers,†Duffy said on the stand. He added that he was not aware of the dog show prior to the visit.

Health worries, grueling schedule

Duffy said he travels with his wife, who keeps him on schedule with his medications for diabetes, particularly when he’s in different time zones. When questioned in detail about a days-long trip to Western Canada, Duffy repeatedly said any public appearances he made were strictly “as a senator†and that he did not ever attempt to deceive the public when filing expenses.

With files from CTV's Katie Simpson