friendly gesture

• waveOscillating motion through medium
• handshakeMutual palm-gripping gesture
• smilePleased facial expression
• nodBrief head tilt
• hugTight, affectionate clasp

pat · welcome · warmth · kindness · greeting · embrace · wink · thumbs-up · offering · peace · olive branch · reaching out · open arms · helping hand · goodwill · courtesy · invitation · acknowledgment

• social interactionshello, goodbye, talk, nod, chat
• hug typesembrace, bear hug, group hug, tight squeeze, cradling
• break the iceicebreaker, small talk, greeting, hello, introduction