effusive, gushing(a), gushy
Meaning: extravagantly demonstrative; "insincere and effusive demonstrations of sentimental friendship"; "a large gushing female"; "write unrestrained and gushy poetry"
burbling, burbly, effusive, gushing
Meaning: uttered with unrestrained enthusiasm; "a novel told in burbly panting tones"
Her eyes beamed an effusive welcome.
The dove had no dignity; he was so effusive he was a nuisance.