When visiting Akasaka Hikawa Shrine, follow proper Shinto shrine etiquette: bow before entering through the torii gate, purify hands and mouth at the temizuya water basin, approach the main hall quietly, bow twice, clap twice, pray silently, then bow once more. Popular prayers include matchmaking, marriage success, relationship harmony, and fertility blessings. Purchase omamori love charms, write wishes on ema wooden plaques, and consider getting a goshuin stamp as a meaningful souvenir of your Tokyo shrine visit.