Synonyms of backslapping

1 Syllable
gay
2 Syllables
genial, jovial, cheerful, merry, jocund, mirthful, festal, pleasant, clubby, happy, friendly, hearty, jolly
3 Syllables
sociable, holiday, festive, vivacious, lively, hilarious
4 Syllables
entertaining, conversible, glad-handering
5 Syllables
companionable