These emojis including ‿ ,‿ , ں, ᵕ, ╰╯, or even ⌒ for those emoticons that are playfully upside-down.

Standard Smily Mouth
(¬‿¬)( ⋂‿⋂’)(-‿◦☀)
(*‿*✿)(•‿•)(•̀ᴗ•́)و ̑̑
(─‿─)(◍•ᴗ•◍)❤(◑‿◐)
(✿´‿`)(❀◦‿◦)(❁´‿`❁)✲゚
(ᅌᴗᅌ* )(•ˇ‿ˇ•)-→♫꒰・‿・๑꒱
o (^‿^✿)(◑‿◐✿)(◡‿◡✿)
(✿◠‿◠)(◕‿◕✿)(๑>ᴗ<๑)
(๑✧◡✧๑)(๑>◡<๑)♪(๑ᴖ◡ᴖ๑)♪
(。◝‿◜。)(๑^ں^๑)( ்ͦˏ౦͜ˎ ்ͦ)
(ෆ ͒•∘̬• ͒)◞(•⚗৺⚗•)(ට˓˳̮ට๑)
(๑•͈ᴗ•͈)₍՞◌′ᵕ‵ू◌₎♡(੭ˊ͈ ꒵ˋ͈)੭̸*✧⁺˚
꒰⁎ᵉ̷͈ ॣ꒵ ॢᵉ̷͈⁎꒱໊(⑅˘͈ ᵕ ˘͈ ):: ೖ(⑅σ̑ᴗσ̑)ೖ ::
三⊂( っ⌒◡|(ؑᵒᵕؑ̇ᵒ)◞✧꒰•́ॢ৺•̀ॢ๑͒꒱
(。≍ฺ‿ฺ≍ฺ)(⚈᷁‿᷇⚈᷁)(๑◕ฺ‿ฺ◕ฺ๑)
⁽(◍˃̵͈̑ᴗ˂̵͈̑)(人 •͈ᴗ•͈)(˙︶˙)☆*°
(୨୧ ❛ᴗ❛)✧( ¨̮ )(*◕ᴗ◕*)
(*´╰╯`๓)♬(∗❛ัᴗ❛ั∗)⊂(◉‿◉)つ
(人 •͈ᴗ•͈✿ฺ)( ・ᴗ・̥̥̥ )(≖ ‿ ≖)
(๑˃͈꒵˂͈๑)(⑅‾̥̥̥̥̥̑⌣‾̥̥̥̥̥̑⑅)(>̯-̮<̯)
(⁎⚈᷀᷁ᴗ⚈᷀᷁⁎)(⁰ੌ⌣⁰ੌ๑)
(⚈᷀᷁ᴗ⚈᷀᷁⁎)✌(-‿-)✌(⋓ื◡⋓ื)
(。≖ิ‿≖ิ)(๑→‿ฺ←๑)ˆ̭̭͙(๑ ົ̅ ͔৹͜ ົ̅๑)
(∗ᵕ̴᷄◡ᵕ̴᷅∗)՞( •॒◞ ͜◟•॒ )(ㆁᴗㆁ✿)
(๑’◡͐’๑)(⌒⃝৺⌒⃝){´◕ ◡ ◕`}
(ට ̥̆ ට)⁽͑˙˚̀ᵕ˚́˙⁾̉(*☌ᴗ☌)。*゚
( ´◡‿ゝ◡`)( ◠ ◡ ◠ )ల(´= ◡ =`)
₊⚛⁺(ؔ꒨◡ؔ꒨)ᵌ( ்ͧˏ౦͜ˎ ்ͧ)꒰⁎❛⃘ੌ ᵕ ❛⃘ੌ⁎꒱
( ́⋅⃘ˬ̇⋅⃘ ̀ˋ)(. ົ̅ ੭͜ ົ̅.)( ᵘ ᵕ ᵘ ⁎)
( ᵘ ᵕ ᵘ ⁎)(๑`・ᴗ・´๑)❀.(´◡`)❀.
◟(๑•͈ᴗ•͈)◞₍ఠ ͜ఠ₎(•‾̑⌣‾̑•)
(∗ᒩ͜∗)( ்ૂ౧͜ ்)(⋈・◡・)✰
(⁝̥ꑦᴗꑦ)(︶.̮︶✽)(❍❛‿❛❍❋)
₍•͈ᴗ•͈₎(ͼ ̥̆ ͽ)(≖ᴗ≖๑)
( °̥̥̥̥̥̥̥̥◡͐°̥̥̥̥̥̥̥̥)( ´͈ ◡ `͈ )( ๑॔•◡ુ•๑॓)
(๑・`◡´・๑),、’`(((;ŏᴗŏ))),、’`’`,、
ෆ⃛(ට◡ට⁎)ფ੬ჴ❛‿❛ჴჱ̒̒৵( °͜ °৵)
(✿◕ ‿◕ฺ)ノ))。₀: *゜☆(❁‿❁)☆◃┆◉◡◉┆▷
q(❂‿❂)p☆(◒‿◒)☆⊂◉‿◉つ
(。✿‿✿。)໒( ﹒ ͜ر ﹒ )७( ‾̮‿͂‾̮ ꐦ)
(˘・ᴗ・˘)(ό‿ὸ)ノヾ|๑ ╹ ◡ ╹ ๑|ノ
(((;◔ᴗ◔;)))໒( ” ¤ ‿ ¤ ” )७✩*॰ ( ¨̮ ) ॰*✩
(✧≖‿ゝ≖)☝( ◠‿◠ )☝(´◡`​)
(๑◔‿◔๑)(◕‿‿◕。)(✿╹◡╹)
(◕ฺ ◡ฺ ◕ฺ)(✿ฺ◡ฺ‿ฺ◡ฺ)(◞‿◟)
(o˘◡˘o)ꉂꉂ ( ˆᴗˆ )₊·(ϱ॔⌄ᵕ๑॓)‧*
-(๑☆‿ ☆#)ᕗ╭ (oㅇ‿ o#)ᕗ/人◕ ‿‿ ◕人\
(o◞ิ‿◟ิo)(•_ ͜_•)(´>‸⚲͜<)
(๑❝᷀ົཽ ⁐̵ ❝᷀ົཽ)✧(• ̥̆ •)