Can i get leptospirosis from being near someone who is infected?

No: Mostly infected by contact with cuts, scrapes, or nose or mouth contact with infected animal urine or water or soil contaminated with infected animal urine. There are cases of person to person spread with sexual contact and breast feeding, but not just from being near someone.

Not likely: Leptospirosis can be acquired through direct contact with urine or other fluids from infected animals or infected water or soil exposure or ingestion. Detailed information at cdc.gov

Leptospirosis: Leptospirosis is caused when a bacterium (Leptospira interrogans) which is stored in animals kidneys is released through urine & contaminates soil or water. If you drank infected water you could become infected. It can also enter your body through breaks in your skin, nose, mouth & genitals. In rare cases it has been passed through breastfeeding & sex. It can be ID'ed wi antibodies.