E.g. Male and female in close proximity while watching stand-up comedy:

*female laughs*
*male smiles* " You have a really nice laugh."

(note: intelligent females may repress their suspicion and allow the line to pass for they have gone too long without intercourse; however the occasion will be limited to one orifice and the male will rarely succeed at leaving his nuptial gift in or near the females mouth).

Rhi has a very nice laugh wich just helps me get through a day :)