I would appreciate anyone's opinion please read?

Okay here is my story i've always been a shy girl since i can remember of course i have dated guys have had lots of boyfriends my life has changed a bit now that i got to meet new ppl but there has been one thing that hasn't changed yeah i have no friends and my relationship with my bf is not going so well i would say its a disaster we don't have respect for each other i don't see us together further in life as a couple i been feeling so empty inside i think i need friends for the fact that i just have nobody to talk to go out have Coffee share a book go out to dinner you know things like that even thought i have a low selfsame i try i sometimes go to walk at the river and there's many couple walking there also and many single man but i am shy to talk to them i mean its the river everybody walking and how would i look if i stare at this handsome guy and say hello my name is Lisa, get it? would be weird hu? what would the guy think oh my shes a weirdo. So how do you thing i should start a conversation with a cute guy ping by walking at the river?