Encounter is related to Affair. Affair is a synonym of Action. Action is a synonym of Brush. Brush is related to Like. 
Touch is related to Shock. Shock is related to Pulse. Impulse is etymologically related to Pulse. 
Encounter <--RelatedTo--> Affair <--Synonym--> Action <--Synonym--> Brush <--RelatedTo--> Like 
Touch <--RelatedTo--> Shock <--RelatedTo--> Pulse <--EtymologicallyRelatedTo-- Impulse 