At an izakaya, food and drink are ordered throughout the evening — there's no set course order. It's customary to pour drinks for others before yourself. Say "kanpai" (乾杯) before drinking. Tipping is not practiced in Japan and can cause awkwardness.
すみません (sumimasen) — Excuse me / I'm sorry, おすすめ (osusume) — Recommendation, おいしい (oishii) — Delicious, 乾杯 (kanpai) — Cheers, お会計 (okaikei) — The bill