Accost (verb)

1. To approach and speak to (someone) in an aggressive or demanding way.
2. To confront or assail (someone) suddenly and without warning.
3. To approach and address (someone) in a bold or forward manner.

Origin:

From french accoster, from italian accostare, from a- ("to") + costa ("rib, side").

Examples:

1. He was accosted by a beggar on the street.
2. She was accosted by a man who asked for her phone number.
3. He was accosted by a group of teenagers in the park.
4. He accosted the woman and demanded her purse.
5. She accosted the CEO at the conference and asked for a job opportunity.