Whistle social

Social whistle: whistle to yourself, or whistle at somebody

Here is how this social looks to you and to everyone around...

On yourself: You whistle a little tune to yourself. Kadm whistles a little tune to himself.

No argument: You whistle appreciatively. Kadm whistles appreciatively.

On someone: You whistle at the sight of Lima. Kadm whistles at the sight of you. Kadm whistles at the sight of Lima.