The Best Way To Say No?

Lately, I have been recalling some uncomfortable experiences I had in the U.S. before for past six years ago.
One of them is that how to deal was dealing with those people who is aggressively asking for begged for money everywhere I went, such as : in at the train station, or a the coffee shop and in front of grocery store. They were also hanging around at or a the gas station, in the middle of road or in at a the crosswalk while I waiting waited for the lights to change.
In Tokyo, people who live in a park or street would rather not to speak to other people in public. If anything, they would prefer to glance away.
On the way to the union station from the quarantine station in the LA, one lady asked me for money. to me in public. With tears in her eyes, She tearfully mentioned that she told me how she couldn't afford basic clinic care for her pregnancy. and the delivery costs. I felt pity for her story and so I gave her a couple of bucks that I had in my pocket. One A minute after giving her the money, she made her way back to her friend and laughed loudly about something. the scene which is she was talking with a loud laugh with her friend or someone.
Sometimes I feet feel like that some people takes take advantage of me with my conversation ability. because I am a foreginer.
When I was in the U.S, I liked riding my bike on the bike trails paths or along the beach trails. Then, some There were people who often speak or beg asked and begged me for money to me over my shoulder while I stop moving. was at rest.
Last year, I watched the news that where an American woman visiting LA from another state who was a tourist from other states was killed at on the street in the street of LA after she rejected street performer's beg for just a dollar. refused to give a street performer a dollar. 

I have had was also once threatened by a stranger with a small cutter blade kinfe at the stairs on my of the apartment I used to live in. 

So, I am just wondering what would be the best way to handle it... Should I wear a motorcycle helmet to shut out an uncomfortable ambient noise?

- Endless-

Oh my god. I am terribly sorry for your unfortunate experiences! You must have trouble sleeping at night at times... 

I can only suggest something as simple as telling them to leave politely, such as  "no thank you." You could also say "I don't want to be involved in any trouble" or "please respect me and leave me alone" when they continue annyoing you. Beggars will not change, so I can only advise you to really observe and get used to the beahviours of other cultures so that you can confidently do the stuff that they and not look like a foreginer. It is a real shame how foreigners are taken advantage of. 

If there are any questions you have about stuff that I have fixed for you, please don't hesitate to comment! I will try my best to help you out further (:

The Best Way To Say No?

I have been recalling some uncomfortable experiences I had in the U.S. before for past six years ago.
One of them is that how to deal with those people who is are aggressively asking for money everywhere such as : in the station or a coffee shop, in front of grocery store or a gas station, in the middle of the road or in a crosswalk while I was waiting for the lights to change.
In Tokyo, people who live in a park or on the street would rather not to speak to other people in public. If anything, they would prefer to glance away.
On the way to the union station from the quarantine station in the LA, one lady asked for money to from me in public. She tearfully mentioned that she couldn't afford basic clinic care for her pregnancy and the delivery costs.I felt pity for her story and gave her a couple of bucks that I had in my pocket. One minute after giving money, I saw the scene in which is she was talking with a loud laugh with her friend or someone.
Sometimes I feel like that some people takes advantage of me with my conversation ability.
I like riding my bike on the bike trails or beach trails. Then, some people often speak or beg for money to me over my shoulder while I stop moving.
Last year, I watched the news that an American woman who was a tourist from other states was killed at the street in the LA after she rejected street performer's begging for just a dollar. Also I have had been threatened by a stranger with a small cutter blade at the stairs on my apartment I used to live.
So, I am just wondering what would be the best way to handle it... Should I wear a motorcycle helmet to shut out an uncomfortable ambient noise?

- Endless-